Polycyclization
聚环作用
🗣️ 情景例句
I take your point.
我同意你的观点。
Let's get together one of these days.
找一天聚聚。
Some children can cover the whole length of the pool without coming up for breath even once.
有些孩子能够跑完游泳池的全长而不用露出水面换气。