Aerial photo taken on May 4, 2017 shows villagers in Dingshanhe Village participating in a folk culture event to celebrate the upcoming "lixia", the beginning of summer, the 7th term of China's "24 Solar Terms", in Hangzhou, east China's Zhejiang Province, May 4, 2017. This year's the beginning of summer fell on May 5. (Xinhua/Xu Yu)