Cyclosubstituted
[建] 环取代的
🗣️ 情景例句
How you all doing ?
你们大家怎么样？
I'm glad to hear about your graduation.
我很高兴得知你毕业了。
It is as if a single unimportant event set up a chain of reactions.
好像是一件无关紧要的小事引起了一连串的连锁反应。