Hitec
硝酸钾、硝酸钠、亚硝酸混合物
🗣️ 情景例句
I know.
我知道。
Remember me to your father-in-law please.
请替我问候你的岳父。
The Cutty Sark rolled from side to side and it became impossible to steer her.
船身左右摇晃，无法操纵。