Unsaturated polyester resin
[化] 不饱和聚酯树脂
🧩 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
resin
['rezin]
n. 树脂;合成树脂;松香;
vt. 用树脂处理;涂擦树脂于;
🗣️ 情景例句
I only buy used books.
我只买旧书。
Every dog has his day.
凡人皆有得意时。
What's the point of going to college?
上大学有何用？