They also will study chemical and physical properties of the soil samples with a method called infrared spectroscopy.

VOA: special.2009.01.20

Even while Aristotle may deny that there is a single method appropriate to the study of politics he proposes a set of common questions that political scientists have to address.

且总是时有变迁，虽然亚里士多德,可能否定有单一方法适合研究政治,但他却也提出一套通用的问题,政治科学家必需加以探讨。

耶鲁公开课 - 政治哲学导论课程节选

But rather reason, he says, is attained by industry,by work, and it is developed first, he says, by the imposing of names on things, the correct names on things, and second by getting a good and orderly method of study.

他说，理性是通过辛勤的努力得来的，理性的形成，是通过使用事物的名称，事物正确的名称形成的，第二，是通过获得一种良好,而有有条不紊的学习方法形成的。

耶鲁公开课 - 政治哲学导论课程节选

Now,a small but intriguing new study looks at one way the delivery method might affect the baby's health.

VOA: standard.2010.06.30

It's a more powerful method than something called a cross-sectional study, and I'll come back in a later lecture and talk about these in more detail, but a cross-sectional study means you're taking a snapshot of a population of people at one time.

这种方法比所谓的横断面研究更加有效,我将在以后的课中,再仔细讨论这个问题,但横断面研究是指,你一次记录下一群人的状况

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The University of North Carolina School of Medicine conducted a study that shows that by training local birth attendants in a method promoted by the World Health Organization, the number of still births was reduced by about 30 percent.

VOA: standard.2010.05.11