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2013-05-23 12:21
求翻译：Next, the Wrights built a wooden glider. In 1901, they experimented on the larger sand dunes at Kill Devil Hills. The glider had arched wings, a design that made the glider more stable. It also had hand controls that worked a flap on the tail to control up-and-down movements. But the brothers needed a design with even 是什么意思？ 待解决
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Next, the Wrights built a wooden glider. In 1901, they experimented on the larger sand dunes at Kill Devil Hills. The glider had arched wings, a design that made the glider more stable. It also had hand controls that worked a flap on the tail to control up-and-down movements. But the brothers needed a design with even
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