Copolyester
[化] 共聚多酯; 共聚聚酯
🗣️ 情景例句
All right.
很正确。
Did you give it to him yourself?
你自己亲自交给他吗？
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？