Coprostanol
粪（甾）醇
🗣️ 情景例句
I'll do it. I'll talk to them.
我来做， 我去跟他们谈一谈。
When did I say that?
我什么时候说过了？
Oh, and please keep together. We don't want any of you to get lost!
噢，请大家靠拢一些。我们不想丢下任何一位同学！