In some parts of the world, cyclists have been powering safety lights for years with devices called bicycle dynamos, which use a generator to create alternating current with every turn of the wheels.
在世界的一些地方，骑自行车的人已经通过叫自行车发电机的装置产生了多年的安全电能。当自行车车轮转动的时候一个装在上面的发电机就会产生交流电。
Today, the wheels of science and technology is fast moving, all aspects of society have been experienced great changes. And the world is being shrouded by "globalization".
当今，科技的车轮在飞速的向前推进，社会的各个方面都在发生着巨大的变化，世界正在被“全球化”所笼罩。
Today, the wheels of science and technology is fast moving, all aspects of society have been experienced great changes. And the world is being shrouded by "globalization".
当今，科技的车轮在飞速的向前推进，社会的各个方面都在发生着巨大的变化，世界正在被“全球化”所笼罩。
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