Anthanthrene
[化] 二苯并[cd,jk]芘
🗣️ 情景例句
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
Do you have a letter of introduction?
你有介绍信吗？
Then Dr.Millington asked the caller if he was a relative of the patient.
之后，米灵顿医生问打电话的人是否是病人的亲属。