"This legislation not only makes history, but it will make progress for America's working families."

VOA: standard.2010.03.16

And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.

科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"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