Derivator
[计] 微分器
🗣️ 情景例句
Let me confirm your name and room number.
我需要确定一下您的姓名和房间号码。
I'm the healthiest pupil in my team.
我是我的那一队伍中最健康的学生。
They look around ,but Li Mei did not wait for their thanks.
他们看看周围--但刘梅没有等他们感谢就走了。