A “boor” was merely a “peasant” and now means a “rude, ill-mannered person”, which belongs to（）of word meaning.
A.extension B.narrowing C.elevation D.degradation正确答案D
A “boor” was merely a “peasant” and now means a “rude, ill-mannered person”, which belongs to（）of word meaning.
A.extension B.narrowing C.elevation D.degradation正确答案D
