下面各组词中哪个词的元音发音不同?
问题描述：
下面各组词中哪个词的元音发音不同?
1share fair dear chair hair
2how show town mouth cow
3bread head red need ready
4come love does long son
5week steak cake make lake
6jar class had laugh last
7your door floor story hour
答
dear
show
need
long
week
had
hour