Coprostanol
粪（甾）醇
🗣️ 情景例句
No. He left a note on the door
是的。他留了一张条子在门上
It is easier to raise the devil than to lay him.
养虎易，驯虎难。
How do you know so much about it? Have you seen the film?
你怎么知道那么多情况？你已经看过这部电影了吗？