The issue, then, is not "that such sensations are not recognized in their individuality" (in other words, people recognize differences in pronunciations); rather, it is that sounds "are classified according to their similarity" (in other words, that people classify a variety of perceived sounds into one category).
那麼，问题並不是“这些知觉未能被他们个人所认知”（换言之，人们认知到某些发音的差異）；而是这些语音“是依據其相似性而被分类”（换言之，人们将多种被感知到的语音归成同一类）。