Diphenylbenzidine
二苯基联苯胺
🗣️ 情景例句
How long will it take for my mail to reach its destination?
我的信件到达目的地要多久？
She bursts into laughter.
她突然笑出声来。
Nor is it only the ignorant and ill-educated person who has such faith in the bottle of medicine.
并不只是那些无知和没受过良好教育的人才迷信药瓶子。