The University of Illinois Extension advises getting bare-root roses as close to planting time as you can.

VOA: special.2010.06.15

I like that answer. I then tested it on the square root of 9, and as I mentioned last time, I didn't find 3. I was not crushed.

我喜欢这个答案,然后我又试了试9的平方根，跟我上次说的一样，答案不是3。

麻省理工公开课 - 计算机科学及编程导论课程节选

He was trying to describe electrons, but the theory said there are two roots in the quadratic equation and the second root is mathematically as interesting as the first one.

他当时只是想去描述电子,但是数学理论告诉我们,二次方程有两个根,而第二个根在数学上和第一个根一样有趣

耶鲁公开课 - 基础物理课程节选

But Hamburg parsley has a large root which is used as a vegetable.

VOA: special.2009.06.02

And it is precisely this desire to be self-governing, you might say to rule directly, to have a direct part in political rule, that Hobbes saw as one of the great root causes of civil war.

正是这种自我统治的愿望，直接统治的愿望，在政治统治中直接参与的愿望，霍布斯视为是,内战一个很重要的原因。

耶鲁公开课 - 政治哲学导论课程节选

You can buy potted roses, also known as container roses, or bare-root plants.

VOA: special.2010.06.15

The idea really took root--the idea, the intuitive idea is that as you write a large number of policies, the fraction that will result in accidents becomes closer and closer to the probability of one accident.

这种观点建立在...,观点是,只要你签的保单足够多,事故占保单总数的比例就会越来越接近,事故发生的概率

耶鲁公开课 - 金融市场课程节选

A Christian civilization was deeply at the root of this cluster of ideas we call Manifest Destiny, as was a virulent kind of nationalism that boomed after the War of 1812 and through the 1820s into the 1830s.

基督教文明是我们所称的命运天定,及其相关思想的核心,它是一种有害的民族主义,在1812年战争后兴起,并流行于十九世纪二十年代和三十年代

耶鲁公开课 - 美国内战与重建课程节选

I'm using it as an abstraction, saying I'm going to have square root from somewhere, maybe I'll build it myself, maybe somebody gives it to me a s part of a library, so I'm burying the details inside of it.

我把这个方法作为一个抽象来引用，意味着我将会从另外一个,地方去求一个数的平方根，可能我会自己写这个方法,也可能我会从别人写的lib中去引用,因此我将实现的细节放到了其他地方。

麻省理工公开课 - 计算机科学及编程导论课程节选

Think about that. All this, Comus explains : Nay Lady, sit; if I but wave this wand, Your nerves are all chained up in Alabaster, And you a statue; or as Daphne was, Root-bound that fled Apollo.

试想一下，所以这一切，Comus解释到：,小姐，坐，但如果我挥舞这个棒子，你的所有神经都束缚在这个大理岩上了，你是一尊雕像，或像月桂树那样，被绑在根上逃往阿波罗。

耶鲁公开课 - 弥尔顿课程节选