题目内容：

It's a beautiful place,but there are so many people there that I couldn't 为
but there are so many people there that I couldn't find a proper place to take photos.为何用but,不用so?

优质解答

so表示“所以”.因果关系
but表示“但是”.转折关系
全句意思 “这很漂亮,但是人太多了以至于我都找不到一个合适的地方照相”