Violanthrole
二苯并羟蒽
🗣️ 情景例句
Hello.
哈喽。
Me too. I was hoping we could put this bicycle together for Tom's birthday.
我也希望如此，我本来希望买这辆自行车做为送给汤姆的生日礼物。
What do you mean by special?
怎么特别呢。