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
Didn't we go to school together?
我们以前在一起上过学吗？
There is a time to speak and a time to be silent.
该说话时说话，该沈默时沈默。
Just three more cases.
只要再三箱就可以了。