Tom qab tau txais tus neeg muas zaub' s kev txiav txim, yog tias cov khoom muaj ntau lub thawv nyob rau hauv tag nrho, peb yuav yuav cov khoom raw nyob rau hauv ib txoj kev koom ua ke, thiab ua kev sib haum raws li cov cai tshwj xeeb ntawm cov neeg siv khoom, xws li cov khoom lag luam twg hauv maj nrawm kom xa tawm thiab yam khoom twg tuaj yeem nqa hauv pob khoom thib ob. Peb cov khoom lag luam tau nrawm heev. Txog rau hnub xa khoom, peb ib txwm tau cog lus tias yuav ua tiavntsia hlau hauv avraws sijhawm.
