The blue light is the product of a long travel path through the snow or ice.

VOA: special.2010.01.05

Now, we're going to go back to Roger Ibbotson at the School of Management. He did some path breaking work in terms of describing capital markets returns over reasonably long periods of time.

先讲回到管理学院的罗格·伊博森,所进行的开创性研究,描述了在相当长的时期内,资本市场的收益情况

耶鲁公开课 - 金融市场课程节选

on a path to long-term, sustainable fiscal health. But he told reporters that achieving another objective, cutting the deficit in half as a percentage of gross domestic product within five years, would require "modifications,"

VOA: standard.2009.03.24

"This conference gives us all an opportunity to reignite its path to progress by working as a team with Haiti at the helm to advance a comprehensive, long-term strategy for Haiti's growth, by coordinating hemispheric and international efforts, by targeting clear goals, by setting benchmarks to gauge our progress, and deploying our diverse skills and resources efficiently and effectively."

VOA: standard.2009.04.14