Cycloolefines
[化] 环烯烃
🗣️ 情景例句
if you're not going to be happy about it.
假如你会因为这种事而不快乐的话。
Not use hiding your heads in the sand, folks.
各位，逃避现实是没有用的。
but it was impossible to stop the thieves.
但他已无法抓住那些窃贼了。