There are other factors involved too like high energy prices, but certainly U.S. policy is affecting that, but we're also affected by the rest of the world.

还有诸如能源价格高昂等其它因素,但美国的政策肯定是有影响,但世界其它地区的情况也影响了我们

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So prices are determined as follows: prices depend on some parameters I'm just going to call a and b, and let me write the equation and then we'll see what it looks like.

价格由如下因素决定,价格取决于两个参数a和b,我们用方程写一下吧

耶鲁公开课 - 博弈论课程节选