In the course of evolution, some birds have lost the power of flight.

在进化的过程中，一些鸟丧失了飞行能力。

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It is usually felt that the power of flight would liberate one from the earth, but freedom is accompanied by anxiety and loneliness.

通常人们认为飞行的力量就在于让人摆脱地球的束缚，但是自由却伴随着焦虑和孤独。

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The two insects have complex flight mechanisms with major muscles in the thorax, the chest region, which power the flapping of wings.

这两种昆虫的飞行机理比较复杂，胸部长有较多肌肉，这样它们才能有力量振动翅膀。

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Gemini's flight director decided to reduce the use of power on the spacecraft, instead of ending the flight early.

VOA: special.2009.06.24

Lucky for me, Ms. Marvel can avoid damage with her power of flight, but I imagine some heroes are more vulnerable to certain villains than others.

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What better symbol is there of the beauty of the human spirit than a device that harnesses the power of flight to deliver free merchandise into the hands of deserving fans hundreds of feet away?

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The two devices weighed less than 0.2 grams and generated 45 microwatts of power during flight.

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