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The canoes allow them to travel over a vast area that today would take a few hours to fly over.

这些独木舟使他们能够跨越一个广阔的地区，而今天飞过去需要几个小时。

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A: How long will it take to fly from Beijing to New York?

从北京飞往纽约要多久？

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Each country has regulations governing the number of hours a pilot can fly before having to take a rest.

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Drones are already able to take off, fly a mission and land without any human intervention, and a mechanical dog developed by the Pentagon can walk for 20 miles (32km) without a break and obey voice commands.

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Fly, take a vacation, stay in a hotel, go to a theme park, rent a car.

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