Now all the e-bike riders in Ningbo must wear helmets while riding.

如今宁波所有骑电动自行车的人都必须戴头盔。

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"At first, I picked an e-bike because I couldn't stand the sickening smell of gas from my scooter." says Zhang Dengming.

“起初，我选用了一辆电动自行车是因为我无法忍受小型摩托车那令人作呕的汽油味。”张登明说。

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According to the new traffic rules, people must wear a helmet when riding an e-bike.

根据新的交通规则，人们骑电动车时必须戴头盔。

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The current prototype is an e-bike, though future models may not include pedal assist, since swapping out batteries could be a logistical nightmare for maintenance crews.

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The new lithium batteries for e-bike transportation might not stand much chance against such overwhelming statistics, unless all those new generations of coming vehicles are to be sustainably-produced, e.g.

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Despite getting caught in a downpour during my test (with the e-bike working fine in the rain), I was impressed by the experience and plan to rent an e-bike from Hertz again soon.

BBC: Rent an electric bike in London