While it's possible bike-sharing will cause a drop in business, Crooks allowed that the idea is a positive step forward for New York City.

虽然共享单车可能会导致业务下滑，但克鲁克斯认为，这一想法对纽约市来说是向前迈出的积极一步。

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Spring tendons enhance the foot’s efficiency: some of the energy spent to drop one’s weight down when taking a step is actually stored and then returned to the leg as it rebounds.

人们走路每迈出一步，重量落下时所输出的一部分能量，事实上被脚弓存储起来，然后被脚弓弹起，这部分能量就又返回到腿部。

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Instead, he recommends regular stretching exercises, like standing with your toes on a step and letting your heels drop down.

于是，他建议女性做些常规的伸展练习，比如踮起脚尖站在台阶上，再缓慢放下脚跟。

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Or, in an even broader step, drop all funding restrictions and allow companies to avoid disclosure.

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She had seen him heading to a local school to drop off his young step-daughter at a Halloween party.

BBC: John Finnegan

Competition among other generics will drive down consumer prices, creating a 30% drop when the first rivals step in and an 80% discount once 20 or more competitors pile on, according to researchers at Duke University.

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