Oxford is a very old town on the River Thames, about 60 miles from London. Unlike modern university towns, where you usually find the university on the edge of the town, or on its own campus (校园), Oxford's center is the university and all around the crossroads at the very heart of Oxford, Cax, there are grey stone colleges and other university buildings. In the center you can also find interesting old restaurants. There are a lot of churches, and a few really large and interesting buildings, such as the Ashmolean Museum, the 'round' library, the Bodleian and Radcliffe Camera. Like all English towns, there are parks, and one' The Parks' is the home of university cricket(板球) in the summer months. As you leave the center and go towards the edge of Oxford you can see industrial areas in one direction and in another, beautiful suburbs(郊区). There is, in fact, quite a lot of industry in Oxford. The passage introduces to us ______.