River ranger inspects water in Northwest China
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A river ranger inspects and cleans up the Baishui River in Wen County in the city of Longnan, Northwest China’s Gansu Province, on February 21. Following the Spring Festival holiday, the county government has strengthened its “river chief” water course management and protection system.
(Photos: People's Daily; compiled by Yang Jiaqi)

A river ranger inspects and cleans up the Baishui River in Wen County in the city of Longnan, Northwest China’s Gansu Province, on February 21.

A river ranger inspects and cleans up the Baishui River in Wen County in the city of Longnan, Northwest China’s Gansu Province, on February 21.

A river ranger inspects and cleans up the Baishui River in Wen County in the city of Longnan, Northwest China’s Gansu Province, on February 21.