Propellants
出国 Abroadn. 推进剂; 推进物( propellant的复数形式 )
🗣️ 情景例句
but my work keeps me busy.
但我老是忙于工作。
How often did I tell you not to speak so loud?
我告诉你多少次不要讲话这么大声?
Nice to meet you too! What class are you in?
我也很高兴。你是哪班的？