What Kennedy was referring to was that while GDP has been the most common method for measuring the economic activity of nations, as a measure, it is no longer enough.(2017年Text3)
A: 该句的难点在于主语从句，“What Kennedy was referring to”-表语从句，“that while GDP has been the most common method for measuring the economic activity of nations”-让步状语从句，“while GDP has been the most common method for measuring the economic activity of nations”。其他难点结构：“for measuring the economic activity of nations”介词短语作定语，修饰“the most common method”。
B: 该句译文是：肯尼迪指的是，尽管国内生产总值曾是衡量一个国家经济活动最常规的指标，但是作为一个衡量手段，它已经不再足够了。
