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A child paints Peking Opera mask during a Chinese traditional cultural show to mark the China Week Heidelberg 2019 in Heidelberg, Germany, on April 5, 2019. (Xinhua/Lu Yang)
A child paints Peking Opera mask during a Chinese traditional cultural show to mark the China Week Heidelberg 2019 in Heidelberg, Germany, on April 5, 2019. (Xinhua/Lu Yang)