Vim muaj ntau hom npog ntsej muag, pab pawg sib txawv ntawm cov neeg siv, thiab cov chaw ib puag ncig sib txawv, nws tsis tuaj yeem paub meej txog cov ntsej muag qhov ntev npaum li cas siv. Hauv qhov xwm txheej ib txwm, daim npog ntsej muag kho mob pov tseg pom zoo kom hloov tsawg kawg 4 teev; yog tias daim npog ntsej muag ntub los yog qias neeg nrog kev zais, lossis puas, lossis hnov tias ua pa nyuaj ntxiv, nws yuav tsum tau hloov tam sim ntawd.
