但把它们掺和在一起就不像你想的那样有双倍的好处了，因为一份最新的研究表明某些维生素会阻碍运动发挥作用。

But put them together and it's not as good as you'd think. Because a recent study shows that some vitamins block the beneficial effects of exercise.

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在双倍测度下，次线性算子有界性问题的研究起到非常重要的作用。

For doubling measure, the boundedness of the sub-linear operator plays an important role in many problems.

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如果你真的想要一个极简的衣橱，那就在里面放质量好的衣服，能起双倍、三倍或者四倍的作用，昆特说。

If you really want to rock a minimalist closet, it helps to invest in quality pieces that do double, triple or quadruple duty, Quint said.

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