The subjects ran at their own pace on a treadmill, first in modern running shoes and then again barefoot.
研究者让受试者按照自己平常的速度在跑步机上跑，先是穿着新式跑鞋，后光脚跑。
Dozens of ALS patients are testing treatments on their own without waiting on the slow pace of medical research.
几十名ALS患者没有等待进展缓慢的医学研究，正自己对自己进行治疗试验。
Dozens of ALS patients are testing treatments on their own without waiting on the slow pace of medical research.
几十名ALS患者没有等待进展缓慢的医学研究，正自己对自己进行治疗试验。
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