In this condo's living room, a handy pull-out shelf functions as a dining table while a coffee table does double duty as a bench.

这是公寓楼中的一个起居室，一张推拉式的木板既可用作收纳之用，又可作为咖啡桌使用。

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BusinessWeek questioned the battery life of the new phone, which will pull double duty as a battery-slurping iPod.

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Schaefer believes big budgets and smaller ensembles have placed an increasingly heavy burden on actors who now pull double duty as singers and dancers.

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Not only must you settle on a screen size, you also have touch-enabled machines to consider -- and don't forget those Atom-powered hybrids, which pull double duty as standalone slates and full-fledged laptops.

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