Tetrachloroanthraquinone
四氯蒽醌
??? 情景例句
He is not up to the job.
他不能勝任這個工作。
Pardon me. I wonder if you could tell me how to get to Mott Street?
對不起，不知道你能否告訴我到莫特街怎么走？
What a great party! I really enjoyed it.
聚會好極了！我真喜歡。