Parnanthracene
[化] 双蒽; 仲蒽; 聚二蒽
🗣️ 情景例句
Two is enough.
两块足够了。
Why are you wearing my sweater?
你为什么穿着我的毛衣？
It would be easier for us if you would ship next month.
如果能在下个月出货的话我们会轻松一些。