这貌似是定语从句that关系代词的特殊情况定语从句只能“that”引导的情况：1、先行词是最高级或被最高级修饰.This is the most interesting book that l have ever read.2、先行词是序数词或被序数词修饰.The second...你这个意思是说little作为名词：很少的事情 然后that作为定从的关系代词 那我理解成little作为形容词很少的，然后后面用what，what可以看成 things that，句子就是i am sorry there is little things that i can do to make him change his mind.也成立吧？？不成立 is 和 things就矛盾嗯懂了 O(∩_∩)O谢谢