A is to B what C is to D what 在句中是什么成份?
问题描述：
A is to B what C is to D what 在句中是什么成份?
A is to B what C is to D what 在句中是什么成份,这句话是什么结构?
例：air is to man what water is to fish
答
A对于B来说就像C对于D一样
what C is to D 构成宾语,相当于
A is (what C is to D) to B 或者
To B, A is (what C is to D)