Parnanthracene
[化] 双蒽; 仲蒽; 聚二蒽
🗣️ 情景例句
I'd be glad to tell you what I think.
很高兴告诉你我的想法。
A friend is not so soon gotten as lost.
交友慢，失友快。
Certainly, Mum! What shall we cook?
当然啦，妈！ 我们做什么菜？