違い（区別がつかない・区別していない）

I don't make a distinction between a kindergarten and a nursery school.保育園と幼稚園の違いがよくわからないな。　I personally think both are the same.　個人的には一緒だと思うよ。


Toyota and Nissan
I can make a distinction between BMW and VW. But I can't between Toyoda and Nissan.


express trains  and limited express
a driver's license and a international driver's license