Anthanthrone
[化] 二苯并[cd,jk]芘-5,10-二酮
🗣️ 情景例句
I lived in Florida,
我住在 Florida，
I wonder if it will rain tomorrow.
我不知道明天会不会下雨。
Invariably the background was the same: dirt and poverty, and very uncomfortable.
肮脏、贫穷，极其不舒适。