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A countdown clock is projected onto the wall of 10 Downing Street in London, Britain, on Jan. 31, 2020. Britain will leave the European Union (EU) on Jan. 31, 2020. (Xinhua/Han Yan)
A countdown clock is projected onto the wall of 10 Downing Street in London, Britain, on Jan. 31, 2020. Britain will leave the European Union (EU) on Jan. 31, 2020. (Xinhua/Han Yan)