And there are theories who say that by its definition film is not literary but it's a visual art.

也有理论家认它的定义说明,电影并非文学,而是一种视觉的艺术。

麻省理工公开课 - 电影哲学课程节选

So, to illustrate Skinnerian theory in operant conditioning, I'll give an example of training a pig.

为了说明斯金纳的操作性条件作用理论，我会给大家举一个训练猪的例子。

耶鲁公开课 - 心理学导论课程节选

The debt irrelevance theory says that it matters for the price of a share what a company issues-- how much debt it takes on-- but it doesn't matter for the value of the company.

负债不相关理论说明它和,公司发行股票的每股价格,和总负债有关,但和公司的价值无关

耶鲁公开课 - 金融市场课程节选

The question, of course, is what scholars have disagreed about and continue to disagree about, because the evidence simply will not permit any confident answer, but I ought to just mention a few of the theories that have been tossed around, a few among many, many, many.

而这个问题,是学者曾经争论不休,而且至今也尚无定论的,因为以目前的证据,不能得到任何确切的答案,但我需要,就一小部分广为传播的理论做些说明,这些只是各种理论中的一小部分

耶鲁公开课 - 古希腊历史简介课程节选