Busy is a kind of happiness, let we have no time to experience pain; Travel is a kind of happiness, let us real life; Fatigue is a kind of enjoyment,let us too busy to empty.忙碌是一种幸福，让我们没时间体会痛苦;奔波是一种快乐，让我们真实的感受生活;疲惫是一种享受，让我们无暇空虚。