自己写的，看看合适不合适
SmileWhy you looks so happy?Because on your face there is a smile!What a smile is?and what it used to be?I think smile is a feeling from your bottom of your heart,it can show your feelings:happy or angry!With a smile on your face,you can make friends easily.Because it shows that you are a very friendly person,people would like to talk to a person who with a smile but not a angrily face.More over,a smlie can keep a good health and let you in a good mood!Take the factors into consideration,you could understand why people around us are all with a smile!
