Polymers
n. 聚合物；高分子（polymer的复数）
🗣️ 情景例句
What's that?
那是什么？
This problem is hard to solve.
要解决这个问题不简单。
I think we should paint it white. Then we can do some drawings on it.
我想我们应该把它粉刷一下。然后再在上面画些画。