Metaformaldehyde
[化]变甲醛, 聚甲醛
🗣️ 情景例句
Could you please say that again?
能再重复一遍吗？
We can't decide when to leave.
我们不能决定什么时候离开。
If people don't stop polluting the seas and rivers, there will be no fish left.
如果人们不停止污染海洋和河流的行为，那么，就没有鱼会留下来了。