Polycyclization
聚环作用
🗣️ 情景例句
OK. Finish off by jogging in place.
好 ，结束之前在原地慢跑。
Don't speak all you know, but know all you speak.
不要尽言所知，而要尽知所言。
What happened on the march then?
那么 ，在游行中发生了什么事？