Whether you believe it or not, the world changes rapidly every day. Some old people mgiht have got used to enjoy their lives in a peaceful and slow pace, but as for others, we are forced to accept a lot of new stuffs daily. We even don't know that what new things will appear tomorrow and what our life will be changed due to those things. Many years ago, we tended to hang out with our frineds to talk about intersting things hapeened recently . Friends plays an important role in our daily lives, but everything changed all of a sudden after social meidas created. We were excited to share interesting things in the chat group online. It gave us a particular experience about life. However, the world still changed until we isolated oueselves in the virtual room which provided by the social medias. We tend to watch others' moments posted online,but seldom post our moments. We even don't who are mour ture friends,because it seems like everyone online is our friend. We are eager to share our interesting things, but we are afraid of sharing them with others. We don't want to see that the moment we posted online just gets a few or even no likes. We can't accept the fact that we are losing all of our frineds online. Maybe friends just exist in reality.