You should see the flash-card screen roll down from the top right corner, stay for a bit, then roll back up.

应该可以看到 flash-card 屏幕从右上角滚下，停留一会儿，然后又向上滚回。

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Roll cover upward to top of seat back.

向上滚动盖至座位椅背的顶上。

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The central idea is based on the Greek methodical character Sisyphus who was forced to roll a large stone up a steep hill, which tumbles back down when it reaches the top.

科林斯王被迫将一块巨石滚上一座陡峭的山，每当石头到达山顶时又滚到了山底。

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My mom, who is writing a memoir based on letters her dad sent back from WWII, works at the same roll-top desk my dad first used as an Assistant Professor at the University of Minnesota in the 1980s.

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Still, Rangel says he won't attempt to roll back the temporary tax breaks already in the law, including the special top 15% rate for capital gains and dividends.

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