With those results,he tied and then passed long track speed skater Bonnie Blair for the most Winter Olympics medals won by an American.

VOA: standard.2010.02.23

swap I'm going to keep track of a little variable called swap, it's initially true, and as long as it's true, I'm going to keep going, but inside of the loop I'm going to set it to false, and only if I do a swap will I set it to true.

我打算跟踪一个小的变量称为,初始值为真，只要它是真的,算法就会继续，但是在循环里,我打算把他设为假,除非交换发生，就把它设为真。

麻省理工公开课 - 计算机科学及编程导论课程节选

Owens dispelled Hitler's theories on the track, winning gold medals in the 100 and 200 meters, 4x100-meter relay and long jump.

VOA: standard.2009.08.19

So you've got to get it around the track,". Bolt has been blessed with amazing talent, and his height gives him a long stride.

VOA: standard.2009.08.21