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例如，睡眠时间从20世纪50年代的8小时左右下降到近年来的7小时。

For example, sleep duration has declined from some 8 hours in the 1950s to 7 in recent years.

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可以在图中右下角看到两个新按钮。

You can see the two new buttons on the lower right of the figure.

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- Now the bottom-- the little underscore in the bottom right hand corner represents the blank tile and just as with my thumbs I would move 4 down or maybe 2 to the right.

现在下方,右下方的下划线表示空白片,我可以用手指将4移下来,或者将2移到右边。

哈佛公开课 - 计算机科学课程节选

You either want to coordinate on up left or you want to coordinate on down right.

你们希望通过协调,能够达到左上或者右下的结果

耶鲁公开课 - 博弈论课程节选

Notice at the bottom right here, we have all these different icons.

注意右下方有，一些不同的按钮。

哈佛公开课 - 计算机科学课程节选