Servomechanism
n. 伺服机构
🗣️ 情景例句
Hello, this is ... What can I do for you?
喂， 我是……我能为你做点什么吗？
The child is father of (or to) the man.
三岁定终身。
Come to school in your old clothes tomorrow!
明天上学时请穿旧衣服来！