Polymers
n. 聚合物；高分子（polymer的复数）
🗣️ 情景例句
if, and I repeat,
只要， 我重复一遍，
She is at a loss as what to do.
她不知怎么办才好。
Lin Tao ran past him. He was first past the finishing line.
林涛超过了他。他第一个冲线。