请问What idea can a man who is blind from birth have of color为什么要用of
问题描述：
请问What idea can a man who is blind from birth have of color为什么要用of
答
What idea can a man who is blind from birth have of color?其中who is blind from birth 作a man 的定语，特殊疑问句把what idea 提前了，还原一下：A man who is blind from birth can have what idea of color.
答
你可以转换下语序的 那样就好理解了
What idea can a man （who is blind of color from birth ） have ?
括号里面是定语从句
blind of color 当然就是色盲的意思咯