Secocholestane
断胆甾烷
🗣️ 情景例句
He is not cut out for teaching.
他不是当教师的料。
A light heart lives long.
心胸开朗，使人寿长。
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。