A gondolier teaches Wu Juan (L), a barge-woman from Zhouzhuang to handle a gondola (a traditional, flat-bottomed Venetian rowing boat) in Venice, Italy, on July 21, 2015. During the Expo Milan 2015, China's Zhouzhuang holds a seminar in Milan and an event called "A Tale of Two Cities" in Venice to introduce Chinese culture of "Water Town". (Xinhua)