Servomachanism
[计] 伺服机构
🗣️ 情景例句
He graduated from medical school in 1960
他在一九六零年从医学院毕业，
He that will eat the nut must first crack the shell.
欲所得，必先劳。
Well, we can't take Polly with us. Could you look after her for me while we're away?
嗯，我们不带波利去。我们不在这里时，您能帮我照料它吗？