Unsaturated polyester
[化] 不饱和聚酯
🧩 词语组成解析
a. 没有饱和的, 不饱和的
polyester
[['pɔliestə, ˌpɔli'estə]]
n. 聚酯\\n[化] 聚酯
🗣️ 情景例句
I can't ask him for a raise, I have no experience in negotiation.
我不能叫他给我加薪，我在谈判方面没经验。
It seems he's lucky.
看起来他好像很幸运。
A foreigner living in a Swedish village wrote to the Ombudsman complaining that he had been ill-treated by the police, simply because he was a foreigner.
一个住在瑞典乡村的外国人写信给司法特派员，抱怨说他受到警察的虐待，原因就是因为他是个外国人。