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Chinese artist performs face-changing of the Sichuan Opera and interacts with Tulia Ackson (R), Tanzania's Deputy Speaker of the National Assembly during the "Happy Chinese New Year" gala in Dar es Salaam, Tanzania, on Feb. 11, 2018. (Xinhua)

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Chinese artist performs face-changing of the Sichuan Opera during the "Happy Chinese New Year" gala in Dar es Salaam, Tanzania, on Feb. 11, 2018. (Xinhua)

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Chinese dancers perform during the "Happy Chinese New Year" gala in Dar es Salaam, Tanzania, on Feb. 11, 2018. (Xinhua)