Sir Roger Bannister, first runner to run a sub-4 minute mile.
Sir Roger Bannister第一位一英里跑低于4分钟的选手。
In 1945 the world record for running a mile (1609 meters) was 4 minutes 1 second - so close to the 4-minute barrier that everyone was expecting it to be broken quickly.
1945年时一英里(1609米)跑的世界纪录为四分零一秒。当时人们普遍认为，很快便可有人超越这一秒之差，突破四分钟大关。
I jog about three times a week, for about 3-4 miles each time at about a 7-1/2 minute per mile pace for general conditioning, so that's my frame of reference.
我一周慢跑三次左右，每次大概跑3-4 英里，每英里大约用时7.5 分钟（普通锻炼效果），这就是我的参考标准。
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