wholesale为形容词:请看该词牛津8的解释:wholesale adjective [only before noun]1. connected with goods that are bought and sold in large quantities, especially so they can be sold again to make a profit: wholesale goods / pricesCompare: RETAIL2. (especially of sth bad) happening or done to a very large number of people or things: the wholesale slaughter of innocent peoplewholesale adverb: We buy the building materials wholesale. ◆ These young people die wholesale from heroin overdoses.第一个意思是:批发,retail意为“零售”第二个意思是:大量的,大规模的(常作贬义)本句中取第二个意思;shift是名词,意为“转移”of后面的是定语,修饰shift, “。。。。。的转移”