A single wingtip feather, he found, moved a fraction of an inch, gives a smooth sweeping curve at tremendous speed.

他发现，把翼消的一根羽毛转动那么一丝丝，就可以在高速下平平稳稳地来个急转弯。

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Then a blinding flash lit up the sky. Superheated air rushed at tremendous speed, knocking down buildings and setting the center of the city ablaze.

不料，一道眩目的光划过天边，炽热无比的空气，以迅雷不及掩耳的速度，把建筑物夷为平地，市中心顿时陷入一片火海。

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Then a blinding flash lit up the sky. Superheated air rushed at tremendous speed, knocking down buildings and setting the center of the city ablaze.

不料，一道眩目的光划过天边，炽热无比的空气，以迅雷不及掩耳的速度，把建筑物夷为平地，市中心顿时陷入一片火海。

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