Dipyridone
二甲基联吡啶二酮
🗣️ 情景例句
I recently broke up with my boyfriend. I was really bummed out.
最近我和男朋友分手了。我真沮丧。
Little pigeons can carry great messages.
少年也可以成大事。
No, we haven't.
嗯，没有。