英语句子翻译1 Did you know that the average student has 5~6friends

英语句子翻译
1 Did you know that the average student has 5~6friends,or that a friend who was previously an enemy is liked more than one who has always been on the right side?would you believe that physically attractive individuals are preferred as friends to those less attractive
2 For exemple ,one function friendship seems to fulfil is that it supports the image we have of ourselves.Certainly we appear to project ourselves onto our friends.several studies have shown that we judge them to be more like us than they are