1. Piv nrog rau ruaj ruaj, txoj kab kev tsim tawm ntawm cov xov tooj txawb tsim cov khoom siv sib txuas hauv chav tsim khoom, tshem tawm cov chaw tsim khoom siv yooj yim txhim kho ntawm cov sib cais, txo cov khoom siv thiab cov sijhawm noj mov. Qhov tsim nyog thiab qhov chaw ntawm lub teeb ntawm chav ntsuas txhim kho qhov hloov tau yooj yim ntawm kev xaib.
2. Txawb tuaj yeem muab cov ntaub ntawv xa tawm ncaj qha hauv thaj chaw, tsis tas yuav tsiv cov khoom tawm hauv daim teb rau kev rov tsim dua, txo qis kev thauj mus los ntawm cov khoom.
3. Txo txo lub sijhawm sib dhos, phiaj xwm pib ua haujlwm ntau dua sijhawm, txhim kho tus nqi nrawm dua.
