Allylic
烯丙基的
🗣️ 情景例句
I've got plenty of time.
我有的是时间。
We prepared a picnic lunch and drove down by the river.
我们准备了野餐午餐并沿河边向下开车。
Sophie, this is Hans.He is German.
索菲娅，这位是汉斯。他是德国人。