Yet even this represented an improvement on the Stygian depths of minus 39 last July, an all-time low since the index started in 1974, or the minus 37 recorded in January 2009.

但纵然如此，比之于1974年指数有史以来的最低点――去年7月的-39，或2009年1月的-37，可谓进步。

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Sometimes music going to Heaven and prostrate, since the depths of the campus, we are eager and happy laughter, do not think that we humor, is very low, can actually laugh out takes courage.

有时会乐的仰天伏地，因为校园的深处，我们渴望快乐的笑语，别以为我们笑点很低，能笑得出其实也需要勇气。

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The magmatic evolutionary series shows a general trend of evolution from high to low basicity of magma, from great to shallow depths of magmatic intrusion and from strong to weak wall-rock alteration.

岩浆演化序列表现出岩浆基性程度由高变低、侵入深度由深变浅、围岩蚀变由强变弱的总体演化趋势。

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High, of course, is when the kids are out of school and the weather is great, or summer, while low is during the depths of winter, when fewer people are traveling, with the exception of the holidays.

WSJ: How (and When) to Snag Cheap Airfares

The previous low, of 663, came in December 2008, during the depths of the credit crunch.

WSJ: Global Shipping Faces More Choppy Waters

Even with the economy out of the depths of recession, that play is still a winning one for low-price chains like Dollar General .

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