Acetyloxide
氧化乙酰, 醋(乙)酐
🗣️ 情景例句
What are you so upset about?
什么使你如此难过？
She finally began to get angry when Paul didn't arrive.
当保罗没有到达时，她终于开始生气了。
Lucy and I go to school six days a week.
鲁茜和我每周上六天课。