No feat of intelligence and character is so exacting as that required of two people who desire to live permanently together on a basis of amity. 如何分析,谢谢!
...ter等引导定语从句,where前可以与from引导定从:A. She went to America two years ago,since when I haven't heard from her any more.B. She climbed up to the top of the hill,from where she could have a good view of the whole town.问题:比如AB两个句子。when和where在定从...