He heard the name used by men who worked at a racetrack in New Orleans,Louisiana.

VOA: special.2009.12.27

And somebody once wrote many a superb champion of Longchamps, that is the racetrack, met their end on the table of some well-heeled person from the western fancy districts of Paris.

有人写过那些朗克汉普斯获的冠军赛马,朗克汉普斯是赛道名,它们的一生结束于一个,巴黎富人区的有钱人的餐桌上

耶鲁公开课 - 1871年后的法国课程节选

For example, if a car is going on a racetrack and you're seeing it from the top, if the speedometer says 60 miles per hour, you might say it's not accelerating.

例如,如果一辆车在跑道上行驶,你从上面俯视它,如果速率表显示的是60英里每小时,你也许会说它没有在加速

耶鲁公开课 - 基础物理课程节选