Hexenic acid
[化] 己烯酸
🧩 词语组成解析
🗣️ 情景例句
I know how you feel, but there's no need to go on and on about it.
我知道你的感受，可是也没必要这样没完没了。
Opportunity seldom knocks twice.
机不可失，失不再来。
that given a planet only approximately like our own, life is almost certain to start.
如果设想有一颗行星和我们地球的情况基本相似，那几乎肯定会产生生命。