Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
I hope you have a wonderful time
希望你们玩得开心
A tall tree catches the wind.
树大招风。
Really? Oh well, no news is good news.
真的吗？噢，没有消息就是好消息。