Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
if you're not going to be happy about it.
假如你会因为这种事而不快乐的话。
This is an interesting floor plan.Please show me the basement.
这是一有趣的平面布置.请给我看一下地下室。
When I touched him on the shoulder, he turned around.
我拍他的肩膀，他转了过来。