Differentiable
[计] 可微的
🗣️ 情景例句
A foreign diplomat grabbed his chopsticks as a historic souvenir.
一名国外的外交人员就拿起他用过的筷子，用它作为具有历史意义的纪念品。
I couldn't care less.
我不在乎。
Fine, thank you.
我很好。谢谢。