Translate the following into Chinese : Sunday schools spread rapidly, especially in the 1830s and 1840s. In addition to their religious purpose, the schools provided many with a basic training in literacy. Meanwhile, an adult school movement emerged, closely allied to Sunday Schools but devoted exclusively to the education of grown-ups. From the 1830s onwards an increasing number of elementary day schools opened in the evenings, for adult students as well as children and adolescents. These were small, private institutions run on the same lines as the day schools and used the same teachers and premises. University education was open to the middle and upper classes only. From the 1830s onwards, there was increasing pressure to reform the ancient universities of Oxford and Cambridge to make them comply better with the demands of contemporary society. In due course, from the 1850s onwards, both Oxford and Cambridge began to offer extension lectures in towns and cities, vying with each other and with the newly-established London University. University extension was predominantly middle class, and particularly popular with women.