Lub kaw lus

Cov khoom no yog cov txheej txheem tiav nrog ntau yam kev ua haujlwm uas siv tau ncaj qha. Nws cov ntawv thov hauv kev lag luam poob rau hauv plaub pawg tseem ceeb, uas yog: kev txheeb xyuas, kev tshawb pom, kev ntsuas, kev tso chaw thiab kev taw qhia. Piv rau kev tshawb pom ntawm tib neeg lub qhov muag, kev saib xyuas tshuab muaj qhov zoo sib xws ntawm kev ua haujlwm zoo, tus nqi qis thiab lub peev xwm los tsim cov ntaub ntawv ntsuas tau thiab cov ntaub ntawv tiav.