肉眼看上去有9條跑道，不一定設計的是9條比賽跑道，見內

來源: coach1960 於 2016-08-18 12:47:49 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (365 bytes)
回答: 我記得400米就是9道 由 jiangwen999 於 2016-08-18 12:27:16

But the Rio de Janeiro Olympic Stadium track only has eight lanes. According to Olympic historian Bill Mallon, never before had a time trial been used in a similar situation for an Olympic relay.

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