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Visitors view former U.S. President George Washington's portrait during the exhibition "America's Presidents" at the National Portrait Gallery in Washington D.C., the United States, on Feb. 17, 2020. (Xinhua/Liu Jie)
Visitors view former U.S. President George Washington's portrait during the exhibition "America's Presidents" at the National Portrait Gallery in Washington D.C., the United States, on Feb. 17, 2020. (Xinhua/Liu Jie)