Admiral Mullen says while comparisons between Iraq and Afghanistan are not perfect, some lessons learned in Iraq in recent years can apply.

VOA: standard.2009.11.04

More speculatively, there has been some fairly recent work studying the genetic basis of language, looking at the genes that are directly responsible for the capacity to learn and use language.

更具体的来说,一些最新的语言遗传基础研究,探查了直接影响语言学习,及使用能力的基因

耶鲁公开课 - 心理学导论课程节选

Goolsbee says recent indicators showing improvement in some sectors of the U.S.economy are encouraging Americans who had stopped looking for work to re-enter the job market.

VOA: standard.2009.06.07