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2017 Mobile World Congress Americas held in San Francisco

U.S.-SAN FRANCISCO-MWCA-OPENING

People visit the 2017 Mobile World Congress Americas (MWCA) in San Francisco, the United Stateson Sept. 12, 2017. 2017 Mobile World Congress Americas is held here from Sept. 12 to Sept. 14. (Xinhua/Wu Xiaoling)

[ Editor: meng ]