Anthanthrone
[化] 二苯并[cd,jk]芘-5,10-二酮
🗣️ 情景例句
May I bring you a salad?
要不要来点沙拉呢？
Too much spoils, too little is nothing.
过多反坏事，太少不济时。
I wonder if they can make it.
我在想他们是不是能办得到。