Dioxopiperidine
二氧代哌啶, 哌啶二酮
🗣️ 情景例句
And how are you going to stop him?
那， 怎么去阻止他呢？
A life without a friend is a life without a sun.
人生在世无朋友，犹如生活无太阳。
Certainly! I'm coming now, Mum!
当然可以，妈妈，我马上就来。