Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
Max looks just like Grandpa.
Max长得真像爷爷。
If you're hungry, we can eat dinner now.
如果你饿了，我们现在就去吃饭。
I think he's Mr. Zhang.
我想他是张先生吧。