Poison once meant simply "drink", but now means "poisonous drink". This is an example of（ ）of meaning.
A.extension B.narrowing C.pejoration D.amelioration正确答案B
Poison once meant simply "drink", but now means "poisonous drink". This is an example of（ ）of meaning.
A.extension B.narrowing C.pejoration D.amelioration正确答案B
