英语翻译
短文如下：
A wild week for wall Street stocks that saw their biggest gain since the Depression and worst sell-off since 1987 drew to a close with another changing session that ended in the red .The market swung between gains of as much as 4 per cent and losses that hit 2.9 per cent.The s&p 500 closed down 0.6 percent at 940.56 points.The Nasdaq was down 0.4 per cent at 1,711.29 points ,and the Dow was down 1.4 per cent at 8,852.22 points.