Diphenimide
联苯甲酰环亚胺
🗣️ 情景例句
What a thoughtful boy he is!
他是个多么体贴的男孩啊!
If he doesn't play, who will?
如果他不，谁要去玩？
I'm sorry to have done that. I didn't mean to be so rude.
我为那样做感到抱歉。我并不想那样粗鲁的。