Equally perversely, this waiver fails to take advantage of the particular benefits of hybrids, which are built for stop-go traffic where braking recharges the battery and boosts fuel economy.

事与愿违，这个鼓励并没有发挥混动车的优势，因为混动车在设计时就主要考虑到了频繁起步停车过程时利用汽车发电机制动而将汽车的动能转化为电能储存在蓄电池里面，从而提高了燃油经济性。

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'The Chinese economy is like a car with no brake, ' says Columbia University economist Xiao Geng in Beijing. 'You go fast by adding gas. You stop by shutting off the gas.

哥伦比亚大学（Columbia University）驻北京经济学家肖耿说，中国经济就像一辆没有刹车的汽车，加油就跑得快，关掉油门就停下来。

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