Dimethylbenzidine
二甲基联苯胺, 联甲苯胺
🗣️ 情景例句
An apple a day keeps the doctor away.
每天一个苹果不用看医生。
Make the best of a bad business (or job or bargain).
身处山穷水尽，力争柳暗花明。
Bye.
再见。