Derivatize
[医]衍生
🗣️ 情景例句
Don't forget to take lots of pictures.
别忘了照些照片。
Your friend was here a week ago,wasn't he?
一个星期前，你的朋友曾在这里，是不是？
He did not look up from his desk when I entered.
我进去的时候，他连头也没抬。