Parnanthracene
[化] 双蒽; 仲蒽; 聚二蒽
🗣️ 情景例句
Not very good, I'm afraid, but I do play it a lot. Do you play, by any chance?
不怎么擅长，但我确实经常打。你有机会打球吗？
Pride may lurk under a threadbare cloak.
骄傲可能披著老一套的外衣出现。
I have a letter of introduction here.
我这儿有一封介绍信。