Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
Sure. You take the next left turn.
当然。你在下一个路口左转。
In that case, we might need to reopen the question of prices.
如果是那样，我们也许需要重新讨论价格。
In fact, I was a bit frightened and didn't know what we should do.
事实上我有点害怕，不知道我们该怎么办。