N,n-dimethyl-p-phenylenediamine
[化] N,N-二甲基对苯二胺
🧩 词语组成解析
[医] 二甲基
苯二胺
🗣️ 情景例句
I promised you a surprise, didn't I?
我答应过要给你一件惊喜， 不是吗？
Math is beyond me.
我对数学无能为力。
Half past four. Don't forget to tell Jim. I hope he can come too.
4：30。别忘记告诉吉姆。我希望他也能来。