Muaj ntau yam khoom siv uas yuav tsum tau siv rau hauv kev teeb tsa cov kav dej, tshwj xeeb tshaj yog zoo li cov kav dej sib txuas. Txawm hais tias nws yog qhov me me thiab yooj yim kom tsis nco qab, nws ua lub luag haujlwm tseem ceeb hauv kev nqa dej hauv faucet. Yog tias muaj cov dej xau hauv cov yeeb nkab dej sib txuas, nws yuav tsum tau ua raws sijhawm. Yog tias nws tsis tau daws tam sim ntawd, qhov xwm txheej yuav dhau los ua qhov hnyav dua, thiab nws yooj yim ua rau muaj dej hauv tsev. Kev kho cov dej xau dej sib txuas: Cov kav dej sib txuas ua kom cov dej xau, thiab cov kav dej hauv tsev tau siv ntev, thiab yuav muaj teeb meem ntau dua los yog tsawg dua. Yog tias cov kav dej xau, nws yuav yog qhov sib koom ua ke ntawm cov kav dej sab saud lossis qis dua. Lub sijhawm no, nws yuav tsum tau kho thawj zaug. Koj tuaj yeem txiav tawm qhov kawg ntawm cov yeeb nkab dej, thiab tom qab ntawd siv cov yeeb nkab dej tshiab los ua ke nrog cov yeeb nkab dej qub, kom cov yeeb nkab hloov dej tuaj yeem muab tso rau hauv cov kav dej qub. Hauv cov kav dej, zoo li ob lub kav dej tau hla, thiab tom qab ntawd siv cov kua nplaum los ua kom ob lub kav dej sib txuas ua ke.
Qhov sib koom ua ke yog xoob, thiab ntau zaus muaj dej ntws tawm. Nws tsis yog qhov tsim nyog vim tias cov raj xa dej tau tawg, lossis nws yuav siv sij hawm ntev, thiab nws cov pob qij txha tau xoob. Yog tias qhov no tshwm sim, koj yuav tsum tau kuaj xyuas seb cov yeeb nkab dej yas sib txuas puas tau puas lawm thiab tuaj yeem siv tau dua. Yog tias nws tseem tuaj yeem siv tau, koj tuaj yeem txuas ncaj qha nrog cov cuab yeej siv; yog tias tsuas muaj cov kab nrib pleb me ntsis, ces kho nws nrog cov kua nplaum, lossis kho nrog cov cement, tus neeg saib xyuas dej, cov kua nplaum tsis muaj dej thiab lwm yam khoom; Yog tias nws yog Yog tias cov yeeb nkab dej sib txuas tau tawg los yog puas lawm, koj yuav tsum tau yuav ib qho kev sib koom ua ke tshiab los txhim kho nws. ntiav tus kws tshaj lij los kho: Yog tias cov dej xau loj heev thiab lub tsev tag nrho muaj dej, nws raug nquahu kom nrhiav tus kws tshaj lij los kho nws hauv tsev. Ua ntej, tua lub qhov dej, tom qab ntawd tshem tawm cov yeeb nkab dej yas sib koom ua ke, ua tib zoo xyuas seb qhov twg ua rau cov dej ntws tawm, lossis qhov chaw tawg tau tshwm sim, thiab tom qab ntawd ua tib zoo saib xyuas. Yog tias tsim nyog los hloov cov yeeb nkab dej sib koom ua ke, nws raug nquahu kom xaiv cov kav dej zoo sib koom ua ke kom tsis txhob muaj qhov tshwm sim ntawm cov dej xau dua.
