Diphenylbenzidine
二苯基联苯胺
🗣️ 情景例句
Come and sit down for a minute, Michelle.
过来坐一会儿， Michelle。
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
Fearing the authorities, Eric remained in hiding after the war as well.
由于害怕当局，埃里克战后继续深藏不露。