She said the good relationship the United States has had with Mr.Vazquez' left-leaning government underscores the Obama administration's commitment to deal productively with Latin American leaders from across the political spectrum.

VOA: standard.2009.09.15

What might lead to a commitment, ? a decision to make a commitment to make the relationship last?

为什么作出承诺，决定承诺维持双方的关系？

耶鲁公开课 - 心理学导论课程节选