That marks the steepest decline since 1957 .

这是自1957年以来该国最大幅度的出口下滑。

Last week , september wheat futures showed the steepest increase since 2008 .

上周，9月小麦期货价格出现了2008年以来的最大涨幅。

Over the last week , asian markets have posted some of their steepest plunges since 2008 .

过去一周，亚洲市场出现2008年以来幅度最大的几次重挫。

After the steepest decline since the great depression , unalloyed optimism among veteran stock market hands is hard to find .

股市发生了大萧条以来最大跌幅之后，资深股市老手中是很难找到纯粹的乐观情绪的。

July 's data is expected to show that producer prices fell in july by 2.5 percent from a year earlier , its steepest fall since october 2009 .

预计7月的数据将表明生产价格从年初至7月共下降2.5%，是自2009年10以来的最大跌幅。