Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
You drive a hard bargain.
你真会讲价。
The doctor said I look pale.
医生说我看起来很苍白。
I stopped and he asked me for a lift.
我把车停下，他向我提出要求搭车。