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Pro-EU supporters participate in a rally in central London, Britain, on Jan. 31, 2020. Britain will leave the European Union (EU) on Jan. 31, 2020. (Photo by Stephen Chung/Xinhua)
Pro-EU supporters participate in a rally in central London, Britain, on Jan. 31, 2020. Britain will leave the European Union (EU) on Jan. 31, 2020. (Photo by Stephen Chung/Xinhua)