Allyl
n. [化]烯丙基
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
Perhaps he isn't here.
也许他不在这儿。
I went there three days ago.
我三天前去过那儿。