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U.S. President Donald Trump and Chinese Vice Premier Liu He, who is also a member of the Political Bureau of the Communist Party of China Central Committee and chief of the Chinese side of the China-U.S. comprehensive economic dialogue, shake hands after signing the China-U.S. phase-one economic and trade agreement during a ceremony at the East Room of the White House in Washington D.C., the United States, Jan. 15, 2020. (Xinhua/Wang Ying)
