Kab lus no yuav qhia txog cov tswv yim tsim thiab ua cov txheej txheem ntawm cov yas noj su lub thawv npog kom ntxaws, thiab cov qauv ntawm cov khoom yas, cov khoom siv rau kev tsom xam, tsim nyog tsim pwm tshuab.Cov lus tseem ceeb: txhaj tshuaj pwm;Noj su box.Moulding txheej txheem Pa...
Nyeem ntxiv