Acetylketene
[化] 双烯酮
🗣️ 情景例句
By the way, how is your wife doing, Harrison?
顺便问一下，贵夫人近来可好吗？
He is the wise man who is the honest man.
诚实的人就是聪明的人。
They look very uncomfortable.
这种鞋子看上去很不舒适。