The scientists used a computer model to predict how just three grams less salt a day would affect heart disease in the United States.

VOA: special.2010.03.03

Scholars have proposed three possible models to explain the formation of Israel. The first is an immigration model.

学者们提出了三种可能的模型,来解释以色列的形成，第一种是移民模式。

耶鲁公开课 - 旧约导论课程节选

The way we solved that Cournot model was we did three kinds of things.

我们通过三个方法,解决那个古诺模型

耶鲁公开课 - 博弈论课程节选

"Well,there are three basic paths they can go through. The first one is the Standard Model, which is basically the theory of what we know now.

VOA: standard.2010.03.05