what makes life difficult is that the process of facing and solving problems is a painful one这句话的语法?句子成分怎么拆分?is a painful one是修饰哪里的?

问题描述:

what makes life difficult is that the process of facing and solving problems is a painful one
这句话的语法?句子成分怎么拆分?is a painful one是修饰哪里的?