A proverb is a short,well-known saying that expresses a common truth or belief.

VOA: special.2009.08.30

By "difficult," it is meant, I think, well, first of all that it is in some sense set apart from common speech, as a specialized and highly self-conscious use of language.

艰深“的意思，我认为，首先，某种程度上它是和平时谈话有所不同的，专业性极强，对语言运用自知也很高。

耶鲁公开课 - 现代诗歌课程节选

well, you already know you have a bunch of stuff in common.

最起码，你已经知道你们拥有很多共同点。

体验男女初次会面 - SpeakingMax英语口语达人

Okay, common one, people see that now, well what that means is no longer is a three meal sufficient; there has to be a fourth.

这是人们常见到的一个广告,这意味着我们不再遵循每日三餐的准则,意味着我们必须吃第四餐

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And you are going to say, "Well, it is common sense."

你会说“这是常识“

哈佛公开课 - 幸福课课程节选

Well, the most common argument for this claim I think takes the following form.

这个说法通常的论据,我想是以以下方式阐述。

耶鲁公开课 - 死亡课程节选

So in other words, if you terminate these lines early, if you terminate the four loop early, if you terminate an if condition early with that semicolon, the code may very well work; and this is a common source -- of frustration and conundrum because you don't -- because your code looks right and yet it's misbehaving, but that semicolon means stop looking for subsequent lines of related code.

换句话说，如果你用分号过早的终止了这些代码行，如果你过早地终止了那个for循环，如果如此,一个if条件，代码可能可以运行，这就是,挫折和问题产生的源头，因为你没有-,因为你的代码看起来是正确的，但是运行是错误的，那个分号的意思是,停止寻找后面相关的代码。

哈佛公开课 - 计算机科学课程节选