Dioolymer
二聚物
🗣️ 情景例句
I think I'm quite proficient in both written and spoken English.
我认为我在英语读写方面相当熟练。
A chain is no stronger than its weakest link.
链条的坚固程度取决于它最薄弱的环节。
I hope so. Thank you.
但愿如此。谢谢。