六个数字三个一组有多少组

简介：Entering the city, I saw bluestone streets with many teahouses, restaurants, inns and shops on both sides. The residential buildings were scattered in an orderly manner. Although it was getting dark, there were still many pedestrians on the streets, and it looked quite prosperous. However, just like the capital, most pedestrians had disheveled faces and were obviously malnourished.