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Traders work at the New York Stock Exchange in New York, the United States, on April 6, 2018. The Dow Jones Industrial Average erased 572.46 points, or 2.34 percent, to 23,932.76. The S&P 500 decreased 58.37 points, or 2.19 percent, to 2,604.47. The Nasdaq Composite Index was down 161.44 points, or 2.28 percent, to 6,915.11. (Xinhua/Wang Ying)