【摘 要】
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马拉松为何长为42.2km? Did you ever won- der why the official dis- tance of a marathon was exactly 26 miles 385 yards (42.2 kin)?In 1908,the marathon standard
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马拉松为何长为42.2km? Did you ever won- der why the official dis- tance of a marathon was exactly 26 miles 385 yards (42.2 kin)?In 1908,the marathon standard
Why is the marathon 42.2km long? Did you ever won- der why the official dis- tance of a marathon was exactly 26 miles 385 yards (42.2 kin)?In 1908, the marathon standard
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