Doctors must first contact a drugstore to order the medicine for their patients.

VOA: special.2010.05.04

Okay, good, so what we're going to do is we're going to differentiate this thing to find a first order condition.

好吧,那我们接下来,对它求导后找出一阶条件

耶鲁公开课 - 博弈论课程节选

So if we differentiate this object, I'm gonna find a first order condition in a second.

想要求它的导数,先让我想想一阶条件

耶鲁公开课 - 博弈论课程节选

In his first days in office, he signed an order to do so, and appointed a task force to look into details.

VOA: standard.2009.05.20

The first order of business for the founder of a city, any city, is the oversight of education.

城市创建者的,首要任务，任何城市皆然，就是要监督教育。

耶鲁公开课 - 政治哲学导论课程节选

Their first order of business will be deciding on an alliance with a U.S.airline.

VOA: standard.2010.02.01

This was a first order condition or a first order necessary condition.

这个只是一阶条件,是必要条件

耶鲁公开课 - 博弈论课程节选

The military plan is that we will have to do a rescue operation because now we have to rescue the civilians first, in order to go for the rest of the LTTE cadres hiding in that area,"

VOA: standard.2009.04.06

To make this a first order condition, I'm going to say "at the best response," put a hat over the 1.

为了达到一阶条件,我说在最佳对策下,在S1上写个帽

耶鲁公开课 - 博弈论课程节选