Singer Cai Guoqing performs during a Spring Festival gala in San Jose, Costa Rica, Feb. 21, 2018, as part of the annual Cultures of China, Festival of Spring tour. (Photo: China News Service/Yu Ruidong)
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Singer Cai Guoqing performs during a Spring Festival gala in San Jose, Costa Rica, Feb. 21, 2018, as part of the annual Cultures of China, Festival of Spring tour. (Photo: China News Service/Yu Ruidong)
