Kev txiav txim siab kom tau txais lub koob yees duab tshiab tuaj yeem yog txoj haujlwm txaus ntshai, tsis tsawg vim tias muaj ntau cov kev xaiv muaj. Tom qab tag nrho, ntau tus tsis paub tias lub koob yees duab yog dab tsi thiab lawv txawv li cas. Yog li ntawd, ua ntej yuav khoom, tus neeg siv yuav tsum teb cov lus nug uas yuav pab nrhiav qhov kev xaiv tsim nyog tshaj plaws.
Tab sis ua ntej ntawm tag nrho, koj yuav tsum paub tias hom koob yees duab yog dab tsi. Raws li txoj cai, lawv tau muab faib ua compact thiab daim iav. Thawj hom kuj suav nrog cov choj hloov pauv thiab lub koob yees duab superzoom nrog ntau qhov ntev ntawm focal ntev thiab ntau dua kev tswj hwm ntawm qhov chaw raug. Lub lens yog tsim rau hauv lub cev thiab hloov tsis tau.
Cov koob yees duab iav tsis zoo nyob ze rau hom thib ob, vim lawv tso cai rau tus kws yees duab ua haujlwm hauv phau ntawv, tsis siv neeg thiab ib nrab tsis siv neeg hom xws li SLR koob yees duab. Lawv cov lo ntsiab muag hloov pauv tau.
Tam sim no cia peb nyob ntawm ntau hom koob yees duab kom ntxaws ntxiv.
Compact nkag-theem koob yees duab
Thaum txiav txim siab lub koob yees duab twg yog qhov zoo tshaj plaws rau tus kws yees duab pib, koj yuav tsum nrhiav cov khoom siv pheej yig uas me me, yooj yim, tsis muaj frills, zoo tagnrho rau kev tua txhua hnub. Feem ntau lawv tau siv los ntawm AA roj teeb, uas poob lawv cov nqi sai thiab yog li tsis muaj nyiaj txiag ntau. Qhov kev daws teeb meem zoo tshaj plaws yog kev nqis peev rau hauv cov txheej txheem ntawm cov roj teeb lithium-ion rechargeable thiab charger. Nws kim dua, tab sis cov roj teeb no muab lub roj teeb zoo dua thiab tuaj yeem siv ntau zaus, txo koj cov nqi tag nrho ntawm cov tswv cuab.
Feem ntau cov pob nyiaj siv tau nruab nrog cov lo ntsiab muag nrog 3-10x optical zoom, uas feem ntau sib haum rau 35-105mm. Qhov ntau yam no yog qhov yooj yim rau kev tua dav dav, txawm hais tias qee lub koob yees duab txuas ntxiv nws me ntsis los ntawm kev muab qhov dav ntxiv lossis qhov ntev focal ntev ntxiv. Lub koob yees duab nrog lub lens 28mm yog qhov zoo tagnrho rau kev txhaj tshuaj thiab toj roob hauv pes, thaum lub lens 140-150mm yog qhov zoo tagnrho rau kev ntes cov ntsiab lus nyob deb. Dab tsi yog lub koob yees duab zoo tshaj plaws rau tus kws yees duab pib? Raws li txoj cai, kho qhov muag zoom ntawm ntau dua 8x yog muaj rau kev cog lus siab tshaj qhov nruab nrab, yog li cov qauv no tsim nyog saib ze dua.
Nyob rau xyoo tas los no, tau muaj kev sib tw hnyav ntawm cov tuam txhab lub koob yees duab los muab cov koob yees duab siv nyiaj nrog kev ua haujlwm ntawm cov khoom siv high-end. Lub sijhawm no, qhov loj ntawm LCD cov ntxaij vab tshaus tau maj mam nce. Lub 2.7-nti zaub yog tus qauv ntawm cov qauv qis, nrog 3-nti kev xaiv ua ntau dua. Qhov no tsis ncaj qha txhim kho qhov zoo ntawm cov duab, tab sismuab kev pom zoo ntawm qhov chaw thiab tshuaj xyuas cov duab.
Thaum xaiv lub koob yees duab twg yog qhov zoo tshaj plaws rau tus kws yees duab pib, koj yuav tsum mloog cov lus qhia ntawm cov kws tshaj lij thiab ua tib zoo saib xyuas cov duab stabilization. Txawm hais tias cov tshuab hauv hom koob yees duab no tsis zoo li cov qauv siab dua, lawv feem ntau ua haujlwm thiab tuaj yeem pab koj ntes cov duab zoo dua.
Nws puas tseem ceeb rau tus kws yees duab pib, qhov kev daws teeb meem ntawm lub koob yees duab yog dab tsi? Muab qhov tseem ceeb heev rau tus naj npawb ntawm megapixels uas lub koob yees duab compact tsis tau qhia los ntawm cov kws yees duab tshaj lij, vim lawv txhua tus tau nruab nrog cov sensors nrog kev daws teeb meem txaus. Qhov tseeb, ntau tus pixels tuaj yeem ua rau muaj kev puas tsuaj rau cov duab zoo (tshwj xeeb tshaj yog thaum tua hauv lub teeb qis), thiab cov duab siv ntau qhov chaw ntawm daim npav nco. Tshwj tsis yog tias muaj ib qho laj thawj los thaij duab loj, nco ntsoov tias me dua.
Lub koob yees duab compact yog qhov zoo rau cov pib thiab cov menyuam yaus, tab sis cov neeg uas xav tswj kev xaiv tua yuav tsum xav txog lwm yam kev xaiv.
Standard compact koob yees duab
Feem ntau cov compacts ntawm hom no raug nqi 8-20 txhiab rubles. Ib txhia ntawm lawv muab lub kaum sab xis dav, thiab yuav luag tag nrho cov ntawm lawv khiav ntawm rechargeable lithium-ion roj teeb uas tuaj nrog lub koob yees duab. Nyob rau hauv qhov kawg ntawm cov nyiaj khwv tau los, lub hom phiaj yog nyob rau hauv style - nyias thiab muaj yeeb yuj rooj plaub nrog ntau yam trendy nta nyiambuilt-in Wi-Fi thiab lub ntsej muag thiab luag nyav paub. Cov qauv kim dua tuaj yeem suav nrog cov lo ntsiab muag zoom nrog ntev focal ntev thiab cov ntxaij vab tshaus LCD loj dua uas tej zaum yuav yog touchscreens.
Lub koob yees duab hom no muaj dab tsi? Ntau lub compacts muab qee yam zoo li kev txawj ntse uas tau hloov kho ntau qhov chaw raws li qhov kev kawm. Raws li cov kws tshaj lij, qhov no yog qhov kev xaiv zoo tshaj plaws rau cov neeg siv tsis tshua ntseeg siab uas yuav tsis meej pem los ntawm kev hloov kho ntau ntxiv. Yog tias tus neeg siv nyiam cov style thiab kev txav mus los, Sony Cyber-shot ntau yog qhov chaw zoo pib, vim tias ntau lub koob yees duab compact yog nyias, ci, thiab ntim nrog cov thev naus laus zis, lossis tag nrho cov saum toj no, thaum Canon's IXUS ntau kuj yog ib txwm muaj siab heev. rated..
Txawm hais tias cov koob yees duab no yog cov qauv zoo nyob ib puag ncig, lawv tuaj yeem ntshai rau cov neeg siv tes loj lossis cov uas tau siv los tswj ntau dua. Tsuas yog cov koob yees duab kov lub vijtsam, uas tau tswj hwm los ntawm ntau cov nyees khawm virtual ntawm LCD, lub compacts tau nruab nrog ib txheej ntawm cov nyees khawm thiab ib lub ncoo navigation. Feem ntau lawv me me, thiab qee zaum nws nyuaj rau kev nkag siab txog dab tsi raug nias, tshwj xeeb tshaj yog vim tsis yog txhua lub koob yees duab muaj lawv cov npe kom meej meej.
hom koob yees duab no haum rau cov neeg siv uas nyiam cov khoom zoo nkauj.
Zoo siab ua kom sib haum
Ntawm no peb yuav tham txog dab tsicov koob yees duab uas muab cov duab zoo hauv lub cev me me. Qhov no feem ntau ua tiav nrog lub sensor loj dua thiab zoo optics, nrog rau kev tuav tswj thiab kev tsim zoo dua. Nrog lub teeb pom kev zoo thiab siv cov txheej txheem kev yees duab zoo, koj tuaj yeem ua tiav cov txiaj ntsig uas koj tau txais nrog SLR koob yees duab. Qhov no ua rau lawv zoo tagnrho cov koob yees duab thaub qab rau cov qauv kim dua. Txawm tias thaum lub teeb poob qis, kev tswj lub suab nrov uas muab los ntawm cov compacts feem ntau yog qhov zoo, txawm tias qis dua rau qhov zoo tshaj plaws kev ua haujlwm.
Cov no yog cov koob yees duab pheej yig tshaj plaws uas txhawb nqa RAW kaw, uas yog siv los ntawm cov neeg uas xav ua tus saib xyuas cov txheej txheem yees duab. Qee cov qauv muaj lub davhlau ya nyob twg sync rau txuas ntxiv cov khoom siv xws li lub qhov muag pom thiab nyem. Lub koob yees duab nrog lub koob yees duab telephoto qee zaum kuj tau nruab nrog qhov chaw nyob hauv thaj chaw, uas sau qhov chaw ntawm kev tua hauv cov duab.
Qee lub koob yees duab muab siab daws teeb meem LCD cov ntxaij vab tshaus zoo li DSLRs. Vim tias lawv tso cai rau koj nthuav cov duab yam tsis muaj kev cuam tshuam zoo, lawv yog qhov zoo tshaj plaws rau kev tshuaj xyuas cov ntsiab lus hauv kev txhaj tshuaj tiav, lossis rau kev tshuaj xyuas kom pom tseeb thaum sau tshuaj, raws li cov kws tshaj lij.
Ntxiv rau, cov koob yees duab compact siab tau pib tshwm nrog cov duab loj loj (dhau ib nti), kev tswj xyuas tag nrho, RAW kaw, thiab lub lens nrog qhov dav aperture ratio.qhov. Canon G9X thiab Sony RX100 Mark IV yog cov piv txwv zoo ntawm cov qauv no.
Cov koob yees duab compact yog qhov zoo rau kev yees duab muaj tswv yim thiab lub teeb qis, tab sis tsis yog rau cov neeg siv nyiaj lossis nrhiav cov khoom siv taw tes thiab tua.
Super zoom koob yees duab
hom koob yees duab no sib txuas ua ke ntawm qhov sib txawv ntawm qhov dav nrog lub cev me. Ntau tus muab kev tswj hwm kev tswj hwm tus kheej (xws li aperture lossis shutter qhov tseem ceeb xaiv, thiab qee qhov kuj tso cai rau phau ntawv tsom, txhais tau tias tus kws yees duab tuaj yeem txiav txim siab ntau ntawm lawv tus kheej.
Ib qho tseem ceeb ntawm lub koob yees duab zoom yog nws cov duab stabilization. Kev tua ntawm qhov ntev focal ntev yuav tsum tau siv zog ntau dua los ua kom tus ncej ntse, ua kom cov duab ruaj khov hauv lub lens lossis sensor tseem ceeb. Hauv qee lub koob yees duab, qhov no yog ua los ntawm kev tswj hwm qhov kev xav, piv txwv li los ntawm kev nce ISO. Cov kws tshaj lij qhia kom zam qhov no yog tias muaj lwm txoj kev daws teeb meem.
Lwm qhov nrov ntawm cov qauv no yog lub voj voog LCD npo. Nws cais tawm ntawm lub cev thiab tso cai rau koj tua hauv lwm qhov tsis xis nyob (piv txwv li, hauv av). Nws kuj tuaj yeem pab tau thaum tua nyob rau hauv qhov kaj, vim nws tso cai rau koj mus nrhiav txoj haujlwm uas qhov ci ntawm qhov screen tsawg heev.
Ib yam tseem ceeb ntawm lub koob yees duab yog nws qhov zoom. Muaj cov qauv nroglub focal ntev me ntsis, tab sis nrog lub dav aperture (piv txwv li, Panasonic FZ200). Ntawm qhov tod tes, muaj cov koob yees duab nrog ntau qhov ntev ntawm qhov focal ntev (zoo li Nikon P900 nrog qhov zoom 83x zoom).
hom koob yees duab no zoo rau kev ua si sab nraum zoov thiab mus ncig, tab sis nws yuav tsis haum rau hauv koj lub hnab ris.
Lub koob yees duab iav tsis muaj qhov hloov pauv tau
Txawm hais tias lub koob yees duab compact system tsuas yog muaj nyob rau hauv xyoo tas los no, lawv tau hloov pauv kev lag luam duab. Qee cov qauv siv tib lub sensor li DSLRs thiab tuaj yeem ua tiav cov duab zoo sib xws. Lwm tus, zoo li Pentax Q, siv cov ntsuas me me los txo qhov loj ntawm lub koob yees duab ntxiv. Lawv tuaj yeem ua kom me me dua vim tsis muaj lub koob yees duab SLR ib txwm muaj. Qhov no txhais tau tias, txawm li cas los xij, tias lawv tsis muaj qhov pom qhov muag pom. Hloov chaw, muaj qhov pom hluav taws xob lossis LCD npo rau kev txhaj tshuaj.
Vim tias kev ua lag luam rau lub koob yees duab mirrorless yog qhov tshiab thiab loj hlob, tag nrho cov lo ntsiab muag rau lawv tseem tsis tau sau tag nrho. Ib qho ntawm qhov zoo ntawm xws li optics yog tias, zoo li cov rooj plaub uas lawv tau mounted, lawv tuaj yeem ua kom me me thiab sib dua. Rau cov neeg uas tab tom nrhiav kev mus ncig thoob ntiaj teb, ntau lub lens hybrid lub cev yuav yog qhov kev daws teeb meem zoo tshaj plaws, qhov twg cov duab zoo yog qhov tseem ceeb. Thawj ntawm cov tshuab no nkag mus rau hauv kev ua lag luam yog Micro Four Thirds kab, thiab hnub no nwsmuaj cov yam ntxwv zoo tshaj plaws, ib feem vim qhov sib xws optics yog tsim los ntawm Olympus thiab Panasonic, nrog rau qee tus neeg sab nrauv manufacturers.
Txhua tus neeg ua si loj hauv khw muag khoom tsim tawm tsawg kawg yog ib lub koob yees duab compact, tab sis tam sim no tsuas yog Sony tsim cov qauv sib txawv.
Mirrorless qauv yog lwm txoj hauv kev zoo rau cov khoom siv high-end, tshwj xeeb tshaj yog rau kev yees duab thiab kev mus ncig. Cov kws tshaj lij tsis pom zoo kom siv lawv rau kev tua cov ntsiab lus uas xav tau ceev ceev, uas yog muab los ntawm SLR koob yees duab, thiab rau cov neeg uas tau siv lub ntsej muag saib.
Dab tsi yog lub koob yees duab: DSLR-cameras
DSLRs yog qhov ntau tus neeg xav txog thaum nws los txog rau kev yees duab siab. Ua tsaug rau kev txhim kho loj hauv kev siv thev naus laus zis, nws tsis yog axiom uas lawv muab cov duab zoo dua li mirrorless, tab sis nws yog qhov sib txawv ntawm kev tua uas qee cov neeg nyiam ntau dua. Feem ntau, nws tseem muaj tseeb tias qhov dav tshaj plaws ntawm optics muaj rau DSLR tso cai rau tus kws yees duab xaiv ib qho uas tau tsim tshwj xeeb kom ua tau raws li lawv cov kev xav tau.
Dab tsi yog lo ntsiab muag rau SLR koob yees duab? Yeej, lawv raug cais los ntawm focal ntev, qhov siab tshaj plaws txheeb ze aperture, mount hom, sensor hom. Piv txwv li, lo ntsiab muag tuaj yeem yog qhov qub, dav, ultra wide, macro, telephoto, tsau, lossissib txawv focal length.
Feem ntau cov neeg siv khoom DSLRs muab APS-C hom sensors uas loj dua Micro Plaub Thib peb me ntsis tab sis me dua tag nrho cov ncej. Qhov no txhais tau hais tias qhov hloov dua siab tshiab yog hais txog 1.5x rau txhua lub lens ntsia, nce qhov sib npaug focal ntev. Qhov tsis zoo ntawm qhov kev daws teeb meem no yog tias nws nyuaj dua kom ua tiav cov ces kaum dav dua, thiab feem ntau txhais tau tias kev nqis peev hauv lub cev puv lossis lub kaum sab xis ultra-wide-angle optics uas tuaj yeem ua haujlwm ib feem ntawm cov kab ke. Raws li lub sij hawm dhau mus, tag nrho-loj sensors pib pheej yig dua, nrog Nikon thiab Canon muab cov koob yees duab nkag-theem puv npo xws li Canon EOS 6D thiab Nikon D610.
Digital SLR koob yees duab tam sim no muaj cov khoom siv dav tshaj plaws. Txawm hais tias lub koob yees duab kev tshaj lij twg raug xaiv, ntxiv rau ntau hom lo ntsiab muag, koj tuaj yeem txuas lub flash sab nraud rau nws. Ntau tus qauv tuaj nrog kev xaiv roj teeb-powered tuav uas muab roj teeb lub neej ntev dua thiab ua kom yooj yim rau kev tua hauv hom duab. Raws li HD video kaw tau dhau los ua tus qauv zoo, lub microphones sab nraud tuaj yeem nqis peev rau hauv cov suab kaw suab, thiab qhov tob tob ntawm qhov chaw muab los ntawm lub sensor loj tuaj yeem ua ke rau kev yees duab muaj tswv yim thiab lub teeb qis.
Pros pom zoo kom siv SLR koob yees duab kom tau txais kev txhaj tshuaj zoo tshaj plaws, ntes cov khoom txav thiabvideo kaws. Txawm li cas los xij, lawv kim thiab loj.
Lub koob yees duab twg yog qhov zoo tshaj plaws rau tus kws yees duab: hnyav thiab txav tau
Tus neeg siv yuav tsum muaj tseeb txog qhov lawv npaj yuav thaij duab tiag tiag.
Nqa lub koob yees duab loj thiab loj yog hnyav thiab tsis yooj yim, thiab cov tswv uas tsis thaij duab tiag tiag yuav cia nws nyob hauv tsev thiab xav yuav khoom tsim nyog dua. Qhov no yog ib qho tseem ceeb heev, yog li ua ntej yuav, koj yuav tsum mus rau tom khw, nqa lub koob yees duab thiab hnov nws hauv koj txhais tes, tsuas yog kom paub tseeb tias nws qhov hnyav thiab tsim yuav txaus siab rau cov neeg yuav khoom.
Qhov loj thiab qhov hnyav ntawm lub koob yees duab tsis sib npaug rau qhov zoo ntawm cov duab uas tuaj yeem tau nrog nws, yog li koj yuav tsum tsis txhob xav tias ntau dua yog qhov zoo dua. Feem ntau, cov koob yees duab compact yuav zoo dua rau kev nqa hauv koj lub hnab ris, thaum SLRs yuav tsum tau siv zog ntau dua. Mirrorless qauv zoo li poob rau hauv nruab nrab, tab sis muaj qhov tshwj xeeb tshwj xeeb uas loj dua qee qhov DSLRs.
Sensor loj thiab pixels
Hauv cov koob yees duab digital, cov duab ntes tau tshwm sim ntawm qhov hu ua. sensor, uas zoo li ib daim ntawm hluav taws xob zaj duab xis. Cov ntsiab lus me me hu ua pixels ntawm lub sensor no ntes cov ntsiab lus ntawm cov ncauj lus uas tau yees duab.
Koj yuav xav tias ntau pixels siv lub sensor, qhov nthuav dav nws tuaj yeem ntes tau, thiabtheoretically qhov no muaj tseeb. Tab sis nyob rau hauv lub neej tiag tiag, qhov no tsuas yog ib feem ntawm qhov tseeb. Ntau pixels tsis yog ib txwm txhais tau tias kev txhaj tshuaj zoo dua, vim cov kws tsim lub koob yees duab yuav tsum sib npaug ntawm qhov kev daws teeb meem sensor thiab qhov me me pixels yuav tsum ua kom haum rau lub sensor.
Me me pixels zoo li cov neeg hais lus me me - lawv rattle me ntsis. Lub koob yees duab matrices yog dab tsi? Feem ntau, cov koob yees duab compact siv cov duab me me nrog cov pixels me me. DSLRs muaj cov sensors loj dua, yog li lawv muaj pixels loj dua.
Thaum yuav lub koob yees duab SLR lossis mirrorless, cov kws tshaj lij qhia xaiv tus qauv nrog kev daws teeb meem ntawm 12 txog 50 megapixels. Lub koob yees duab compact lossis superzoom yuav tsum muaj 10 txog 14 megapixel sensors los tsim cov duab zoo.
Zoom and focal range
Txawm tias lub koob yees duab digital twg raug xaiv, nws yuav muaj qee qhov teeb tsa ntawm lo ntsiab muag lossis teeb tsa zoom. Yog tias nws yog lub koob yees duab compact, koj yuav tsum nyob nrog qhov nws muaj, yog li xyuas kom nws npog tag nrho cov kab uas koj npaj yuav siv.
Tus lej ntawm lub ntim tsis muaj dab tsi. "10x zoom" tsuas yog hais tias qhov ntev tshaj plaws yog 10 npaug ntev dua qhov dav tshaj. Yog li ntawd, koj yuav tsum tau saib los ntawm viewfinder kom pom koj tus kheej li cas raws nraim cov chaw thiab cov zauv txhais tau li cas hauv lub neej tiag.
Cov neeg siv uas xav yuav lub koob yees duab yuav tsum siv sijhawm los saibdab tsi lo ntsiab muag muaj rau DSLRs thiab mirrorless qauv thiab saib seb lawv raug nqi npaum li cas. Nws tsis zoo tag nrho thaum, tom qab yuav lub cev, tus tswv pom tias nws tsis muaj peev xwm them taus raws nraim cov duab kho qhov muag nws xav yuav.
Kev tshuaj xyuas thiab cov lus pov thawj: lawv puas yuav tsum ntseeg?
Cov ntaub ntawv hais txog lub koob yees duab tuaj yeem pom hauv kev tshuaj xyuas tshwj xeeb, txij li tam sim no tsis muaj qhov tsis txaus, lawv tuaj yeem pom nyob txhua qhov chaw, yog li nws yog qhov zoo dua los siv sijhawm me ntsis thiab paub txog cov ntaub ntawv yooj yim ua ntej yuav.
Kev tshuaj xyuas ntawm cov lag luam lub vev xaib thiab kev sib tham yuav cuam tshuam txog cov teeb meem uas yuav ntsib yav tom ntej. Txawm li cas los xij, yuav tsum paub tias feem ntau ntawm cov neeg no tsis yog kws tshaj lij thiab yuav tsis siv cov khoom kom raug lossis tib txoj kev thiab yuav tsis pom tag nrho nws qhov tsis txaus. Nws tsim nyog nyeem cov kev tshuaj xyuas uas sau los ntawm cov kws tshuaj xyuas hauv cov ntawv xov xwm nrog pab pawg kws tshaj lij.
Lub ntsiab lus ntawm qhov no yog nyeem ntau qhov kev tshuaj xyuas thiab ntsuas ntau qhov kev xav. Feem ntau cov kws tshuaj xyuas zoo tshaj plaws pom qhov zais ntawm qhov muag ntawm lwm tus.
Kuv puas yuav tau tus qauv tshiab?
Nws ib txwm ntxias kom yuav cov khoom tshiab, tab sis feem ntau qhov lawv tau muab piv rau xyoo tas los tsawg dua qhov txawv ntawm tus nqi.
Nws tuaj yeem ntxhov siab heev thaum pom tias lub koob yees duab tshiab tau tshwm sim, thiab qhov koj yuav khoom twb dhau los lawm, tab sis qhov no tsis tshua muaj kev cuam tshuam zoo ntawm cov duab uas tuaj yeem coj nrog lub koob yees duab "laus" lawm.
Tsis yogcov qauv tsis ntev los no feem ntau tseem zoo heev thiab muag rau cov nqi sib tw. Nws tseem tuaj yeem yuav lub koob yees duab siv.
yuav lub koob yees duab nyob qhov twg?
Muaj ntau qhov kev cog lus zoo hauv Is Taws Nem, tab sis cov vev xaib tsis muab lus qhia thiab, qhov kawg, koj tsis tuaj yeem nqa lub koob yees duab los sim nws. Yog li ntawd, tsis muaj lwm txoj hauv kev mus rau lub khw muag duab uas koj tuaj yeem tham nrog tus pab cuam thiab tuav lub koob yees duab hauv koj txhais tes. Yog hais tias, piv txwv li, ib lo lus nug tshwm sim txog dab tsi tripods yog rau ib lub hom phiaj ntawm lub koob yees duab, koj tuaj yeem nug nws thiab tau txais cov lus teb tam sim ntawd, thiab yog tias muaj lus nug tshiab tshwm sim tom qab ib ntus, koj tuaj yeem rov qab mus rau tom khw thiab nug tib tus neeg..
Ib yam yog qhov muaj tseeb rau kev yuav lub koob yees duab compact, yog tias qhov kev yuav khoom no sawv cev rau qhov pib ntawm kev nyiam ua haujlwm loj. Thiab tsim kev sib raug zoo nrog lub khw yees duab zoo yog qhov tseem ceeb.
