Cyclohexylidene
[建] 环己叉, 亚环己基
🗣️ 情景例句
Carl, you're sure you've never played?
Carl，你肯定你从来没玩过吗？
These clothes are too long , they need to be taken up.
这些衣服太长了需要去改一下。
I'd like to know something about your foreign trade policy.
我非常想了解有关贵国对外贸易的政策。