每日普通話 Daily Mandarin Chinese– 船出长江口：上海。( Chuánchū chángjiāng kǒu: Shànghǎi. ) – www.e-Putonghua.com

Learn Putonghua - the Yangtze River estuary boat: Shanghai. (Chuánchū chángjiāng kǒu: Shànghǎi.) -  www.e-Putonghua.com