尽管在过去的十年里，青少年读者的阅读量急剧下降，但报告中的一些数据显示，阅读仍然是许多孩子生活的重要组成部分。

While the decline over the past decade is steep for teen readers, some data in the report shows that reading remains a big part of many children's lives.

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尽管供人类食用的年捕鱼量没有增加，但这种鱼的数量也在下降。

The population of this fish species has also declined, even though the annual number caught for human consumption has not increased.

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6月份，非自愿兼职数量有所增加，但总的趋势是下降的。

There was an increase in involuntary part-time in June, but the general direction has been down.

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That ratio may have been higher in the nineteenth century; it's gradually trending down, but it's a slow-moving thing.

在19世纪这个比率要高一些,然后逐渐下降,但这是个缓慢变化的过程

耶鲁公开课 - 金融市场课程节选

I'm oversimplifying a little bit but between wars the rate tends to come down because people think, well the war is over.

我说得有点过于笼统了,但在战争期间，税率走势却有所下降,因为人们都觉得战争结束了。

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One thing that happened was that after 1956, 1957 the number of cases were down, there was a small bump here, the cases were up.

一九五六年后发生了一件事,在一九五七年,病例的数量有所下降,但在这里却有一个很小的上扬,病例数量上升了

耶鲁公开课 - 生物医学工程探索课程节选