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Students prepare to leave school after one week's study at China-Laos Friendship School in Muang Xay of Laos, March 22, 2019. (Xinhua/Wang Jingqiang)
Students prepare to leave school after one week's study at China-Laos Friendship School in Muang Xay of Laos, March 22, 2019. (Xinhua/Wang Jingqiang)