Diketene
双烯酮
🗣️ 情景例句
So I know.
所以我了解这些。
Why didn't you write me?
为什么你不给我写信？
When my old friend Brian urged me to accept a cigarette, it was more than I could bear.
当我的老朋友布赖恩极力劝我接受一枝香烟时，我再也忍不住了。