从下列各组单词中找出一个画线部分读音与其他三个不同的选项.

从下列各组单词中找出一个画线部分读音与其他三个不同的选项.
mask adult camera jacket
comic clip mobile chicken
use costume unit cut
guess hundred then well
fly sorry july sky
world morning for short
down brown now know
year each really idea
pens models comics swimmers
tall hafl walk small