Antiderivative
[机] 反式衍生物
🗣️ 情景例句
Hey, Xiao Li, are you doing anything this weekend?
嘿，小李，这个周末有没有什么事要做？
Excuse me, how can I get to the bus station?
对不起，汽车站怎么走？
Good morning, Miss Gao.
早上好，高小姐。