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SCIENCE STUDY

Science helps this runner set a new world record

作者:TEENS
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人类最新马拉松纪录背后的科技。

On Oct 12, Kenyan runner Eliud Kipchoge finished a 42.2-kilometer marathon (马拉松) in 1 hour, 59 minutes and 40 seconds. He became the first person to run a marathon of this length (长度) in less than two hours.  

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