Root beer can be made with the materials that are readily available in America.

VOA: special.2011.08.01

Then if I'm looking for the square root of something less than 1, I know it will be in my region, right?

如果我要求平方根的数小于,我就知道我们的答案应该,在0-1这个区间了，对不对？

麻省理工公开课 - 计算机科学及编程导论课程节选

In a high-level language, square root might simply be a primitive that you can use rather than you having to go over and code it.

一个高级的语言，平方根可能仅仅,只是你能使用的一个基本要素,而不是你需要去编译它。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you had one negative number in it, then the product would be a negative number and, if you took a root of that, then you might get an imaginary number.

如果这当中有一个负数,乘积就会变成负的,如果你对一个负数开根号,你就会得到一个虚数

耶鲁公开课 - 金融市场课程节选

Well,here's one other that you might not have thought of, and that is that most of the chords in rock music in particular tend to be root-position chords, and for that reason they're easier to hear.

还有另外一点也许大家还没有想到，那就是摇滚乐的主要和弦尤其倾向于变成根和弦，因此他们听起来也更加容易。

耶鲁公开课 - 聆听音乐课程节选

And I was talking about the fact that for Deuteronomy the election of Israel, God's election of Israel means or entails the idea that Israel is a holy people, holy in the sense of separated to God that root meaning of holiness which means to be separated from the common or the ordinary.

我上次提到了《申命记》中的一个事实,以色列被选择，上帝选择以色列意味着,以色列是神圣的民族，对于上帝他们是分离的,这便是神圣的根本意义,意味着与一般和普通分离。

耶鲁公开课 - 旧约导论课程节选

We've talked about some of these already, having to do with the nature of the harmony-- that pop music tends to have simpler harmonies, and that those harmonies tend to be more repetitious, that they tend to have harmonies that have chords in root position.

我们以前说过，这个问题与和声的性质有关-,流行乐通常用较为简单的和声，流行乐通常用较为简单的和声，流行乐手也大多喜欢用原位和弦。

耶鲁公开课 - 聆听音乐课程节选