Derivativeness
可微商性, 可微商情况
🗣️ 情景例句
We may revise it this evening, and have it ready to be signed tomorrow morning.
今天晚上我们修改一下并做好准备，明天早上正式签订。
I'd like to sit in the front of the plane.
我要坐在飞机前部
I'm not Lily. I'm Lucy. She's Lily!
我不是莉莉，我是露茜，她是莉莉。