Propergol
推进剂
🗣️ 情景例句
Well, I'd better be on my way.
好啦，我该走了呢。
What a coincidence!
真巧！
The only passengers, a young woman and her two baby daughters, were unhurt.
机上仅有的乘客，一位年轻的妇女和她的两个女婴却平安无事。