【正确答案】In the light of componential analysis，the meaning of a word consists of a number of distinctive meaning features；the analysis breaks down the meaning of the word into these features；it is these different features that distinguish word meaning．Similarly，a phoneme is considered as a collection of distinctive sound features；a phoneme can be broken down into these distinctive sound features and it is these sound features that distinguish different sounds．For example，“man”and“boy”share the features of+HUMAN，+ MALE and+ANIMATE but differ in the feature of ADULT；[P] and [b] are both bilabial and plosive but they differ in the feature of voicing．