1. Never trouble trouble till trouble troubles you。 [翻译]麻烦没来找你，就别去自找麻烦。 [点评]第一、四个trouble是动词，第二、三个trouble是名词。 2.I think that that that that that student wrote on the blackboard was wrong。 [翻译]我认为那个学生写在黑板上的那个“that”是错误的。 [点评]第一个that是连词，引起宾语从句；第二、五个that是指示代词“那个”；第三个that在这儿相当于名词；第四个that是关系代词，引起定语从句。 3. I know。 You know。 I know that you know。 I know that... ...Read More>>