Tsis txhob kov cov khoom ntse lossis cov khoom ntxhib los tiv thaiv kev puas tsuaj.
Ceev faj thaum haus luam yeeb, xws li luam yeeb pob tw, ntais ntawv, lub teeb, thiab lwm yam, tuaj yeem ua rau lub rooj zaum puas.
Saib xyuas kom tsis txhob khawb ntawm cov tsiaj xws li miv thiab dev.
Yog tias lub tsev yuav tsis nyob rau lub sijhawm ntev, nws yog qhov zoo tshaj plaws los npog lub rooj zaum nrog ib daim ntawv lossis cov ntaub npog zoo sib xws.
