Mr. Jonsson said: "Because it is powered it can compensate for muscle loss and helps me up stairs or to get up from a chair as well as walking on flat ground."

大卫说：“因为假肢上有动力装置，所以它有助于补偿肌肉耗失，还可以帮人上下楼梯、从座位上站立起来以及在平地上行走。”

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Barrett, meanwhile, got his own high-powered support from former President Bill Clinton, as well as Democratic National Committee Chair Debbie Wasserman Schultz and Maryland Gov. Martin O'Malley.

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