Ketoaldehyde
酮醛
🗣️ 情景例句
What's up?
有什么事？
Who is the auther of this mystery story?
谁是这篇神秘故事的作者？
That sounds very interesting! I'll buy some frozen peas at the supermarket on my way home.
听起来很有趣！我回家时在超级市场买些冻豌豆。