Polystichinol
耳蕨醇
🗣️ 情景例句
what you need to fix up the old library.
你们修复旧图书馆所需要的东西。
While waiting for the train I killed time by reading a book.
在等火车的时候我看书来消磨时间。
This lunch is on me today,
今天这顿饭算我请客。