Unsaturated polyester resin
[化] 不饱和聚酯树脂
🧩 词语组成解析
n. 树脂;合成树脂;松香;
vt. 用树脂处理;涂擦树脂于;
🗣️ 情景例句
Sign here, where I've indicated.
签在这里,在我指的地方。
May I ask you some personal questions?
我可以问你一些私人问题吗?
Because they destroy so many insects, and insects include some of the greatest enemies of the human race.
因为它们能消灭那么多的昆虫,其中包括一些人类的大敌,
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