What are distinctive features? 什么是区别性特征?请帮忙给出正确答案和

正确答案：It is a means of working out a set of phonological contrasts or oppositions to capture particular aspects of language soundsfirst suggested by Roman Jacobsonone of the representatives of Prague Schooland then developed by numerous otherpeople． 通过找出一套音系的对照或对比特征来概括语音的某些方面的方法。这一理论由布拉格学派主要代表人物之一雅克布逊提出后来经过多人的发展。
Itisameansofworkingoutasetofphonologicalcontrastsoroppositionstocaptureparticularaspectsoflanguagesounds,firstsuggestedbyRomanJacobson,oneoftherepresentativesofPragueSchool,andthendevelopedbynumerousotherpeople．通过找出一套音系的对照或对比特征来概括语音的某些方面的方法。这一理论由布拉格学派主要代表人物之一雅克布逊提出,后来经过多人的发展。