Coming after a week of almost-universally upbeat economic data that buoyed U.S.markets, Wednesday's more-somber news is a reality-check, according to Alan Brown of Schroders, an asset management company.

VOA: standard.2009.08.05

All right, so let's just do a reality check here.

好，让我们来做一个现实性的检验。

麻省理工公开课 - 热力学与动力学课程节选

All right, so let's just do a reality check here.

好，让我们来做一个现实性的检验。

麻省理工公开课 - 热力学与动力学课程节选