Phenanthraquinone
[化] 菲醌
🗣️ 情景例句
OK. We'll walk back to your office with you.
好吧 ，我们陪你走回你的办公室去。
He has a letter.
他有一封信。
I can't remember. Did I put them under the table?
我想不起来了。 放在桌子下面了吗？