Peb rub tawm chav ua noj tov khoom teeb tau xav tau tsim los muab ob qho tib si zoo nkauj thiab kev ua haujlwm zoo, ua rau nws zoo meej ntxiv rau txhua chav ua noj.qhov no yog qhov tseeb tias yuav ntxiv qhov kov ntawm chav kawm rau koj qhov chaw thaum ua haujlwm txhua hnub.