Polymethylene derivatives
[建] 聚甲烯衍生物
🧩 词语组成解析
n. [化]聚亚甲基
派生物
🗣️ 情景例句
Excuse me? What did you say?
对不起，你说什么？
We'll have to discuss about the total contract price.
我们不得不讨论一下合同的总价格问题。
Obviously she's gone somewhere to stay.
很明显她去别的什么地方，呆在那儿了。