Phthalidylidene
[化] 苯并[c]呋喃酮亚基
🗣️ 情景例句
I'm so glad you found the bag and took the time and trouble to return it.
我很高兴你发现了旅行袋而且不怕麻烦花时间将它送来。
I remember the girl whose father owns a bakery.
我记得那个女孩的父亲有一间面包店。
No, I don't think we have been.
不，我想没有。