Joints rotary
[医] 旋转关节, 车轴关节
🧩 词语组成解析
n. 关节；连接, 接头；运动付（joint的复数形式）
🗣️ 情景例句
He is an orphan, so he is not sure which family name he should have.
他是个孤儿，因而不知道他自己姓什么。
How much is the salary a month?
每月薪水多少？
I still think we should buy the IBM PC586.
我仍然认为我们应该买IBM586的。