萌萌头像图片卡通头像男生头像（可爱萌萌的小男生头像）

 The past is gone and static. Nothing we can do will change it. Thefuture is before us and dynamic. Everything we do will affect it.

对牛弹琴不算什么能耐，对牛谈情才叫真本事。　　　　

 Don't go around saying the world owes you a living. The world owes you nothing. It was here first.

开卷和闭卷的不同就在于，一个在上面抄，一个在下面抄。