Txhawm rau tiv thaiv cov twj tso kua mis kub thiab cov khoom siv khoom siv thaum lub sijhawm thauj mus los, peb siv cov kev ntsuas ntim khoom. Peb xaiv cov khoom ntim tsim nyog raws li cov khoom loj, cov khoom siv, thiab cov kev xav tau tshwj xeeb, muab cov cushioning thiab tiv thaiv thaum thauj. Peb lub hom phiaj yog los xyuas kom meej tias txhua chav tsev koj tau txais yog nyob rau hauv qhov pom kev zoo.