In his play Macbeth Shakespeare has his three witches hovering over their mystical brew chanting “double, double toil and trouble; fire burn and cauldron bubble.”

在莎翁的戏剧《麦克白》中，他写到有三个巫婆围着她们的魔药，并且吟唱着：“不惮辛劳不惮烦，釜中沸沫已成澜”。

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The 23-year-old was the only player in the Olympic Games to average a double-double, posting 16.6 points and 11.2 rebounds to go along with 2.6 blocks over five games.

哈达迪在北京奥运会上发挥出色：5场比赛场均独得16.6分、11.2个篮板和2.6次盖帽，他也是唯一的一个场均贡献"两双"的球员。

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Bynum played well enough to produce another double-double with 17 points and 12 rebounds in the Lakers' 106-93 win over the Pistons at Staples Center.

拜纳姆在湖人106 - 93战胜活塞的比赛中打得打得不错，拿下又一个17分12板的两双数据。

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And he set a goal to double American exports over the next five years.

VOA: special.2010.01.30

"They would have very, very severe stomach cramps, and double over, and throw up or have diarrhea."

VOA: standard.2010.01.02

which it also plans to export. Ford has said small cars represent the future for automakers, and expects sales of these cars to double over the next decade.

VOA: standard.2009.09.25

Withers then crashed over to seal Crusaders' first double over a Super League side, meaning Whitehead's late score for the Bulls was little more than consolation.

BBC: Crusaders 44-20 Bradford

The Work and Pensions Select Committee forecasts that the number of people over 65 using council care services will more than double over the next 40 years.

BBC: Caring for the elderly

Based on an expected 0.9% annual increase in production over the next decade, the model predicts that real oil prices will nearly double over the same period.

ECONOMIST: The economic impact of high oil prices