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
She went to a school-board meeting.
她去参加联合校董会会议了。
Let us talk about it at our leisure.
那件事我们有空再谈吧。
The truth is that when mistakes occur, they are more likely to be ours than theirs.
事实上，差错很可能是我们自己，而不是铁路当局的。