I have it shown with the--the vertical lines on this chart indicate recessions and this shows--this is from 1948 to 2007 and every recession that we've had since 1948 is shown.

我用图中的这些垂直的线表示,从1948年至2007年的经济衰退,从1948年以来的每一次衰退

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The lines will get shallower and eventually become horizontal and vertical respectively.

直线会变得更平缓,最后会分别变成水平和垂直两种情况

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