Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)
Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)
Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)
Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)
Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)
Students do sketches at a peach field in Langfang, north China's Hebei Province, April 15, 2018. (Xinhua/Lu Peng)