He will be in a long-distance relationship with his girlfriend after joining the Marines.

VOA: special.2009.09.14

It varies with the square of distance so it goes - in order to go twice as far it takes four times as long.

速度是与距离的平方正相关的--,如果要扩散两倍的距离要多花四倍的时间

耶鲁公开课 - 生物医学工程探索课程节选

It calls for America and Russia to each deploy a limit of one thousand five hundred fifty long-distance nuclear weapons -- a cut of about thirty percent.

VOA: special.2010.04.17

Yet,they proved that long-distance travel across the United States was possible.

VOA: special.2010.01.11

But for most automobile drivers, long-distance travel remained somewhat difficult.

VOA: special.2010.01.11

The Oregon-based sportswear giant has long sponsored world class distance runners from Kenya.

VOA: standard.2010.01.22