The researchers found a 14-year difference in life expectancy between Asian-American and African-American men who can expect to live an average of 67 years.

VOA: standard.2010.04.08

But what's even worse is I'm going to get even less than the average amount of life.

但更糟糕的是,我活得比平均寿命还要短。

耶鲁公开课 - 死亡课程节选

Back in the 1840s, life insurance was very important because the average expectancy of life was only something like forty-five years, so that meant parents were dying left and right.

在19世纪40年代的时候,寿险是非常重要的,因为当时的人均期望寿命,仅为45岁左右,这意味着双亲平均只能活到45岁

耶鲁公开课 - 金融市场课程节选

"Recent protests in a number of cities denouncing the lack of electricity is a sign of potentially growing disillusionment and anger over what has become a situation of daily life for the average Iraqi citizen."

VOA: standard.2010.08.04

What this means, if you average it out, is that since children start learning their first words at about their first year of life, they learn about nine new words a day.

如果你将这个数字平均一下,这意味着,儿童从一岁左右,学习第一个词开始,每天学会九个新词

耶鲁公开课 - 心理学导论课程节选

This monumental novel about 20 hours in the life of an average man can be read and appreciated like any other great novel once its framework and form are visualized, just as we can enjoy Hamlet without solving all the problems which agitate the critics and scholars."

这部不朽的小说是关于一个,平常人生命中的二十个小时,在它的框架和形式显现出来的时候,它就能像其他伟大小说一样被阅读和欣赏，就像我们欣赏《哈姆雷特》那样,不用解决那些激发批评家和学者讨论的问题“

耶鲁公开课 - 1945年后的美国小说课程节选

But we might then wonder, for every person who gets less than the average amount of life-- suppose we take the median, take the amount of life that's exactly, 50 percent of the people get more, 50 percent of the people get less.

但是接着我们可能会想，对于所有活得比平均寿命要短的人-,假设我们取中间数，相对于平均寿命，刚好五成的人活得更长，五成的人活得更短。

耶鲁公开课 - 死亡课程节选