以下为句子列表：
英文: And so it proved as the Blues prepared to shift up a few gears.
中文: 这预兆应验了——蓝色战车的齿轮转动已经开始准备加速。
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英文: Boeing wants to use existing wing and tail control surfaces that shift up and down about 20 degrees in a coordinated fashion to disrupt the vortical flow.
中文: 波音公司则利用现成的机翼与机尾控制面，让它们互相协调、上下移动20度，以扰乱涡流。
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英文: Crews cover the middle 1000 metres at about 40 strokes per minute, but, over the first and last 500 metres, shift up a gear to as many as 47.
中文: 在赛程中段的10000米，队员们每分钟要划桨40下，而在前段和后段的两个500米中，划桨的频率要加快到每分钟47下。
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