Cov khoom ua si xuab zeb thiab dej yog cov khoom ua si qub rau cov menyuam hnub nyoog 4-8.

Nov yog peb cov khoom ua si tshiab tshaj plaws hauv cov xuab zeb thiab dej, cov khoom siv yog cov hlau tsis huv.

Peb cov xuab zeb thiab dej ua si cov khoom ua si lub sijhawm lav yog 12-15 xyoos.

Peb tus nqi ntawm cov xuab zeb thiab dej ua si cov khoom ua si yog pheej yig.

Peb cov xuab zeb thiab dej ua si cov khoom ua si lees txais kev txiav txim ntawm 1 teeb MOQ.

Txhua lub sijhawm koj xav tau txais qhov tsocai tshiab tshaj plaws thiab tsim ntawm peb cov xuab zeb thiab dej ua si cov khoom ua si, thov nug peb.