Olefine acid
[化] 烯酸
🧩 词语组成解析
[化] 烯烃; 链烯烃
🗣️ 情景例句
I'm so tired I think I'm overtired.
我好累， 我想我是累过头了。
Don't reject his offer of marriage.
别盲目拒绝他的求婚。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。