Students pose for photos at Washington University in St. Louis, Missouri, the United States, Oct. 8, 2016. The second presidential debate will be held at Washington University on Oct. 9. (Xinhua/Wang Ying)
Students pose for photos at Washington University in St. Louis, Missouri, the United States, Oct. 8, 2016. The second presidential debate will be held at Washington University on Oct. 9. (Xinhua/Wang Ying)
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