Students of Yudao School for children of migrant workers made chalkboard paints to express their wishes for the Children's Day in Hangzhou, capital of east China's Zhejiang Province, May 31, 2016. Jiao Yutong, 11, wants to have a trip to Qiandao Lake, a human-made lake located in Chun'an County of Zhejiang, with her family. (Xinhua/Han Chuanhao)