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 majored in economic and trade English.
我主修的是经贸英语。
Do you ever do exercises on Saturday?
你曾经在星期六做练习吗？
Hello, Jim! Help yourself to a cake.
你好，吉姆！请随便吃糕点。