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: 於 2016-08-18 12:47:49 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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.