The couple Wang Kaiquan and Lin Zhujin work out with students at Changyu Primary School on Changyu Island of Fuzhou City, southeast China's Fujian Province, Sept. 4, 2018. Changyu Island, located in Songxia Town of Fuzhou City, is an isolated island seldom known to the public. The traffic to the island is often disturbed by fierce storms and roaring waves in bad weather, with water and power supplies cut off. Wang Kaiquan and his wife Lin Zhujin are the only two teachers on the island. They have spent 23 years teaching children in a local primary school. Limited living conditions result in a decline in population. Islanders want to move out while outsiders can't get used to the tough environment there. The couple has struggled for long whether they should leave the island for a better life, yet in the end, they decide to stay. "We will carry on the teaching career on this island," said the couple. "As long as there are children going to school, we will stay." (Xinhua/Song Weiwei)