Txhua lub sijhawm ua tiav cov khoom xa tuaj, tib lub sijhawm peb yuav muab cov npe khoom tsis txaus thiab lees paub lub sijhawm xa khoom tom ntej pob zeb raws sijhawm. Peb yuav paub meej nrog cov neeg siv khoom yog tias maj nrawm cov khoom peb yuav xub txiav cov khoom pob zeb no.