So,many people were shocked when Roosevelt announced he was taking action under the law against the railroad trust.

VOA: special.2010.08.05

So this could be summarized as the law of effect, which is a tendency to perform an action's increased if rewarded, weakened if it's not.

这种行为上的变化被称之为效果律，也就是说，行为倾向随奖励而增加，随惩罚而减少。

耶鲁公开课 - 心理学导论课程节选

it takes effect in January. The new law may not go as far as some would like, but the action is historic.

VOA: special.2009.05.27

She may also face opposition for an action she took while dean of Harvard Law School.

VOA: special.2010.05.15

If it can be established that Madni was in Diego Garcia, that would be a breach of European law and as Algar says, that would mean action against the government of Tony Blair and other parties could be mounted.

VOA: standard.2009.07.28