For the forthcoming World Pole Dance Championship, China's national pole dancing team rehearses Chinese tragic love story "The Butterfly Lover" in a training center in Tianjin on Jan 14, 2014. (Photo/CNS)

For the forthcoming World Pole Dance Championship, China's national pole dancing team rehearses Chinese tragic love story "The Butterfly Lover" in a training center in Tianjin on Jan 14, 2014. (Photo/CNS)

For the forthcoming World Pole Dance Championship, China's national pole dancing team rehearses Chinese tragic love story "The Butterfly Lover" in a training center in Tianjin on Jan 14, 2014. (Photo/CNS)

For the forthcoming World Pole Dance Championship, China's national pole dancing team rehearses Chinese tragic love story "The Butterfly Lover" in a training center in Tianjin on Jan 14, 2014. (Photo/CNS)