Anthanthrone
[化] 二苯并[cd,jk]芘-5,10-二酮
🗣️ 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是无论怎样都确有其价值。
He is a gentle horse that never cast his rider.
驯良的马绝不会把骑手甩倒。
The majority of people in the town want to encourage new industry in the area.
城里大多数人都希望促进这一地区工业的发展。