Nrog rau xyoo dhau los ntawm kev siv kho mob ua haujlwm zoo , mob tuaj yeem ua tiav cov koob kho . hauv txhaj tshuaj hauv tsev zoo kev Ntxiv rau cov khoom lag luam hauv qab no, koj tuaj yeem hloov kho koj tus kheej qhov tshwj xeeb cov koob txhaj tshuaj kho mob tuag raws li koj cov kev xav tau tshwj xeeb.