Servodyne
伺服系统的动力传动(装置)
🗣️ 情景例句
What grade are you in?
你在几年级？
I am very much thrilled to see this luxurious office.
看到这样一个高层次的分支机构我感到很激动。
We're going out to the Summer Palace.
我们打算去颐和园看看。