I'm sorry, but have to downvote this as it's plagiarism.
Possible sources:
http://zhidao.baidu.com/question/47964688.html
http://mic-gpu2014.sccas.cn/dct/page/65585
http://www.hiddenchina.net/web/eng/reisen_china_trips/klassisches_china_classics/zug_bus_train/day_116.html

Please, consider writing original high quality content.