Derivator
[计] 微分器
🗣️ 情景例句
And this is my wife Marilyn.
这是我太太Marilyn。
Would you mind calling back sometime tomorrow?
你介意明天某时打电话回来吗？
He should have known that the police would never allow this sort of thing.
他本该知道警察绝不会允许这类事情发生。