Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]

Photo taken on May 12, 2015 shows an aerial view of the West Lake in Hangzhou, capital city of east China’s Zhejiang province. [Photo/Xinhua]