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Highlights from chinadaily.com.cn

Photo: Liu Weimin and his wife, Zhang Jinhong, play games with children at a school in Lajie village, Gansu province, on Sunday. The couple, who are in their 50s, went to the mountainous area as volunteer teachers in 2012.

Bilingual: Germany's national railway company, Deutsche Bahn, plans to test small drones to try to reduce the amount of graffiti being sprayed on its property. The drones will carry infra-red cameras to collect evidence to use in prosecuting vandals who deface property at night.