Dimethylbenzidine
二甲基联苯胺, 联甲苯胺
🗣️ 情景例句
I really want to go back to work,
我真的想回去工作，
How much do you know about the works of Henry Wadsworth Longfellow?
你对亨利·朗费罗的工作知道多少？
What are you doing?
你在干什么？