In many parts of the world we've seen that if governments introduce social protection programs, measures for example which give family benefits to families with children, particularly poorer families, this can have an important impact in enabling people to keep their children in school and out of the work force."

VOA: special.2010.05.17

It won't come fully in force in the U.S. Until 2009; it's already starting to have its impact.

直到2009年该协议才会在美国完全生效,但它已经开始发挥影响力了

耶鲁公开课 - 金融市场课程节选

And then watch what happens to the prose style and the difference in tone: I find it most difficult to express with adequate force that flash, that shiver, that impact of passionate recognition.

然后看看那些散文风格,及语调发生的改变：,我发现要恰如其份地表现一刹那的那种颤栗，那种动了感情发现的碰撞，真是最为困难。

耶鲁公开课 - 1945年后的美国小说课程节选