Bipolymer
二(元共)聚物
🗣️ 情景例句
We had this part of the conversation
我们正谈到这儿
I'm afraid you will be late.
我怕你会迟到。
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。