Diphenylbenzidine
二苯基联苯胺
🗣️ 情景例句
How about a lemonade break?
休息一下喝点柠檬水好吗？
Flattery brings friends, but the truth begets enmity.
奉承惹人喜，直言招人仇。
Could I have this sample free of charge?
这样品可以免费送我吗？