Diphenylbenzidine
二苯基联苯胺
🗣️ 情景例句
You have a great future.
你前途无量。
The child is father of the man.
三岁定到老。
he knows while he looks at one side what the other side is like;
他看物体的一边时，便知道另一边是个什么样子。