Polymethylene compound
[化] 聚亚甲基化合物
🧩 词语组成解析
n. [化]聚亚甲基
🗣️ 情景例句
Sorry, that's not really what I mean. What I'd like to know is...
对不起，我真的不是那意思，我想知道的是…
In time of peace prepare for war.
居安思危。
Which speech are you going to listen to this afternoon?
今天下午你准备去听哪个报告？