Naphthophenanthrene
二苯并蒽
🗣️ 情景例句
My suggestion would be...
我的建议是……
Why are you sitting over there?
你为什么坐在那里？
You have signed your name 'Clare Flower' but that is not your name.
你把自己的名签成'克莱尔·弗劳尔'，但那不是你的名字。"