Trying to limit the declines, the New York Stock Exchange said it imposed trading curbs at around 1 p. M. ET with the Dow off about 200 points.

• 大约在美国东部时间下午1时,道指下跌了200点左右。为设法控制股票下跌,纽约证券交易所表示,它采取了限制交易的措施。