And runners proved the doctors and scientists-- proved that they were right and ran the mile in two seconds and 4 minutes, one second, but no runner could run the mile in under 4 minutes, ever since the mile was actually timed-- when they started to time runs.

跑手们证明了医生和科学家…,证明了他们是对的,一英里跑四分钟两秒，四分钟一秒，但没有跑手能少于四分钟，从一英里跑计时以来-,当人们开始计时跑时。

哈佛公开课 - 幸福课课程节选

Let's say you have been a runner for some time and you have been running daily

假设你是个赛跑手，你每天都会跑步。

That's why 课堂 - SpeakingMax英语口语达人

He was one of the guys, he was one of the gars, he was one of the guys. He'd been wounded three times, and he was a runner, he carried messages to the trenches, from the generals who were all drinking champagne in Reims, to the front.

他就是那些人中的一员,他就是那些小伙子,他就是那些人中的一员,他负伤三次,他是个传令兵,往战壕里送信,从那些在,兰斯喝香槟的将军直到前线

耶鲁公开课 - 1871年后的法国课程节选