The bicycle is one of the simplest yet most useful inventions in the world.怎么翻译?

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• The bicycle is one of the simplest but most useful inventions in the world.What is most surprising is that it was not _36___early,although the great inventor Leonardo da Vinci had drawn pictures for bicycles and also for flying machines and some other things.Those things were not produced_37___long after he died.A person riding a bike uses __38__energy（能源） to make the bicycle move ,and there is no pollution at all when you are riding.Even so,in develo
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• The bicycle is one of the simplest but most useful inventions in the world.What is most surprising is that it was not _3
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