在这个世界上微笑是非常珍贵的。保持微笑在所有的地方都是一种礼貌的行为。无论你去哪里，遇到的是谁，微笑都是展示自己的最好方法。即使你们无法用语言进行交流；微笑会也会让别人觉得你没有恶意。其次，微笑让人看起来更漂亮。人们常说你笑的时候很漂亮。笑还可以使人更开心。总的来说，微笑是非常重要的。无论发生什么事，请不要忘记微笑。你的生活会因微笑而不一样。

　　smile is very precious in the world. keeping smile is a polite behavior everywhere. no matter where you go, whom you meet, smile is the best way to show yourself. even you can’t communicate by language; smile will make others think you are no harm. secondly, smile makes a person look more beautiful. people often say that you look very beautiful when you are smiling. smile a lot can make a person become happier. in general, smile is very important. do not forget to smile no matter what happen. your life will be different with smile.