Pervesterol
[化] 藻脂甾醇
🗣️ 情景例句
What grade are you in?
你在几年级？
Henry got a toothache and asked to be excused.
亨利牙疼，请求离开一下。
I told her that either I would have to buy a new mower or let the grass grow.
我告诉她，要么买一台新割草机，要么让草长下去。