We discovered that thousands of years ago Chinese people had the custom each evening of washing the streets which during the day were filled with dust and the clamor of humanity. We also learned that the ancient Chinese had urban planning, dividing their cities into commercial and residential districts.
我們看到早在千百年前，中國人就在夜裡以水洗滌白天塵土飛揚、人聲鼎沸的街道；我們也看到千百年前，老祖宗就有商業區和住宅區的都市規劃。