Metaformaldehyde
[化]变甲醛, 聚甲醛
🗣️ 情景例句
She makes a good living as an author.
她靠当作家过着优裕的生活。
Ahh!
啊哈！
As the Commanding Officer explained later, one half of the station did not know what the other half was doing!
正如指挥官后来解释的那样，基地的这半边不知道那半边正在干什么！