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Thai King Maha Vajiralongkorn (C, Front) attends a royal ceremony to mark Chakri Memorial Day at the King Rama I Monument in Bangkok, Thailand, on April 6, 2019. (Xinhua/Rachen Sageamsak)
Thai King Maha Vajiralongkorn (C, Front) attends a royal ceremony to mark Chakri Memorial Day at the King Rama I Monument in Bangkok, Thailand, on April 6, 2019. (Xinhua/Rachen Sageamsak)