Today is Saturday, I don”t need to go to school, so I decided to take some morning exercises. Early in the morning, I went out of the house and looked around, the city was so quiet. With few cars, the air was fresh, I felt so comfortable. Besides the people who took the morning exercise, I found some people who worn the orange uniform, they were working. This was the first time for me to see the cleaners work in the morning, they were easily neglected, because they worked so early and when the tim
