Pipejack
un. 管子拉紧装置\\n
🗣️ 情景例句
and this is an important decision we have to make.
这又是我们必须做的一个重大决定。
I'm not really sure about that. Mr. Jiang should know the answer to that.
关于那事我不敢确定，蒋先生应该知道答案。
Yes, they are.
是的。