of which的解释...There is nothing in the sentence of which Russ

其实应该是 there is nothing in the sentence (which Russia could logically be an example of)(话说楼主打错了,是an example吧...）
是这样 句子后面括号内 是定语从句 which开头的,紧跟这sentence来修饰它,但是,因为最后be an example of的of它是个介词 根据英语与语言的惯例,要把借此提前所以成了of which
还有很多这种有情况啊 in which 举个例子 this is the shopping mall in which many luxuries can be found因为是定语从句所以是which（其实where也可以但是就用不着in which了）又因为是地方所以用in 因为in是介词所以跳到前面去成了in whhich

这句话是这样理解的，there is nothing in the sentence, Russia could logically be an example of this sentence意思是：在这句子中啥都没有，而俄罗斯逻辑上不应该成为这个句子的例子，这里是定语从句，which指代先行词sentence，而只不过将of提前到which前面