"Many homemakers are very aware of bargains, carefully checking advertisements," says Kumi, a mother of two who works at an elder-care facility.

“很多家庭主妇都非常懂得如何讨价还价并仔细的研究各种广告”，作为两个孩子母亲，她在一家老年人护理机构工作。

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Many researchers had thought the brain used a system of guessing and checking to get to the answer, much like the way a camera's auto-focus system works.

很多研究人员曾认为大脑利用一种估测检查的机制获得正确答案，这种方法很类似于相机自动聚焦系统的工作原理。

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Players have to make the dynamical design for the concrete musical works on the self-checking base of the dynamical range.

演奏者要在力度幅度自我检测的基础上，对具体作品进行力度设计。

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If she's currently employed at another nearby hotel, check into the hotel where she now works for a night, run your fingers along the top of the picture frames checking for dust, open every drawer and cupboard in every piece of furniture in the room, and spend several minutes crawling around in the floor in your room looking under things.

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The site works by sucking data out of social messaging service Twitter, and Foursquare, which relies on users checking into to various locations.

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