Glutaconaldehyde
戊烯二醛
🗣️ 情景例句
We will help your children in learning lessons in their free time.
我们可以帮助您的孩子在他们空闲时学习功课。
You won't regret it.
你不会后悔的。
What was to become of them all, he wondered.
他们这些人会怎么样呢？他感到很纳闷。