Friday,Tehran delayed its response to a proposal made by the US, France and Russia to further enrich Tehran's existing stockpile of low-grade uranium.

VOA: standard.2009.10.24

Is to say, okay now let's try to enrich the model, to add more into the model, and see if you get a different result, and if so why?

好吧,那我们就来完善这个模型吧,给这个模型加入新的约束条件,看看会不会得到不同的结果,如果是再分析原因

耶鲁公开课 - 博弈论课程节选

So you start with your basic model, then you add in, you enrich the model, and you see if the results change, and that'll help you explain why you're getting different results in different settings.

你们从最原始的模型开始,加入约束条件来丰富这个模型,然后检验结果是否有变,这能帮助我们解释,为什么在不同条件下结果是不同的

耶鲁公开课 - 博弈论课程节选