Anthanthrone
[化] 二苯并[cd,jk]芘-5,10-二酮
🗣️ 情景例句
I was laid off.
我下岗了。
What are you talking about?
你正在讲什么？
'And how can you explain that?' she asked.
“那么你对那又作何解释呢？”她问。