Olefine ketone
[化] 烯酮
🧩 词语组成解析
[化] 烯烃; 链烯烃
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
He spends too much money on his hobbies.
他在爱好方面花了很多钱。
I'd better be going.
我得告辞了。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：