Peb muab cov khoom xyaw zoo tshaj plaws nyob rau hauv daim ntawv ntawm cov roj thiab oleoresins siv CO2 ua hnyav.
Peb muab cov khoom xyaw zoo tshaj plaws nyob rau hauv daim ntawv ntawm cov roj thiab oleoresins siv CO2 ua hnyav.
Qhia 1-12 ntawm 24 cov ntsiab lus
Tsis muaj cov khoom nyob rau hauv lub tawb nqa khoom.