Yuav tsum xaiv cov twj siv raw cov khoom siv ua vaj tsev, cov cement, cov khoom sib xyaw, sib sau ua ke, tus neeg sawv cev tso dej yuav tsum ua raws cov qauv xav tau los ntawm qhov ua tau zoo, thiab nws qhov ua tau zoo, kev ua tau zoo, nce kev tshuaj xyuas ntau zaus, thov cov tuam txhab tsim khoom ruaj khov, sib xyaw ua ke sib piv txiav txim siab los ntawm kev sim thiab dhau los ntawm kev coj ua ntawm kev ua kom zoo ntxiv thiab cov ntsiab lus, ua tiav qhov sib xyaw ua ke sib piv tsim ntawm pob zeb ua ke, Kev sib sau ua ke yog qhov zoo tshaj plaws, cov av nkos cov ntsiab lus yog qhov tsawg tshaj plaws, thiab kev poob qis yog qhov tsawg tshaj plaws.
Lub sijhawm sib xyaw ua vaj tsev yuav tsum tau tswj nruj, tswj lub sijhawm sib xyaw ua ke, tuaj yeem txo qhov poob ntawm cov pob zeb poob.
