Aldoketens
[化] 醛烯酮类
🗣️ 情景例句
Yes, I took part in.
有，我参加了。
His bad English is a bar to his getting a job.
他的英语很差，这是他找工作的一个障碍。
Miss Yang works in the school library.
杨小姐在学校图书馆工作。