Polycondensate
缩聚物
🗣️ 情景例句
Frankly, I thought they'd be here, but ...
老实说 我原以为他们会在这儿 但……
Never put off till tomorrow what may be done today.
今日事，今日毕。
It has been said that everyone lives by selling something.
据说每个人都靠出售某种东西来维持生活。