Dimethylbenzidine
二甲基联苯胺, 联甲苯胺
🗣️ 情景例句
You do?
真的知道？
The police crept up from behind and took the gangster by surprise.
警察悄悄从背后绕过去，出其不意地将歹徒逮捕。
Let me have a look, please.
来让我看看。