girls some times idont match between jessica and taeyeon? is every one like me

i dont understand.. what exactly the 질문 was?

Sometimes, based on their hairstyle, expression, etc.
In that pic, YES. (￣▽￣)

found another twin couple yuri and seohyun

Yes they can sometimes depending on what their hairstyle is now that Taeyeon's hair is lighter I think they are starting to look 더 많이 similar. I used to get them mixed up a lot.