Polyacetaldehyde
聚乙醛
🗣️ 情景例句
I'll have no problem.
我不会有问题。
Let me give you a little fatherly advice.
让我给你一些父亲般的劝告。
As there are so many people about, the dogs have to be kept in a special enclosure.
由于来人太多，狗被关在专门的围栏里。