If you just scramble a sentence, it's pretty useless because the recipients are never going to be able to reverse the process.

如果你只是加密一个句子，这是毫无用处的,因为收件人没法将这个句子,反加密出来。

哈佛公开课 - 计算机科学课程节选

In the case of great philosophers, however, better yet to preserve one's physical presence in order to inspire future generations of thinkers.

但对于伟大的哲学家来说，更好的用处是，保存他的原貌,以激励后世历代的思想者。

耶鲁公开课 - 公正课程节选

But let's look for a slight variant of it, where greedy is not so good. And that's what's called the zero-one knapsack problem.

但是让我们找一找它的一些变种，在这些变种中贪婪算法用处不大,这些问题也就是0/1背包问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

And,you may or may not be intested in the motion, as I am, but you might say: what is the signal good for?

对于情感来说，你们或许有兴趣，也有可能和我一样觉得没意思，但你会问，这种信号什么用处？

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

This, as I say, is a different use of close reading.

这也是细读研究的另一种用处。

耶鲁公开课 - 文学理论导论课程节选

Protein in the diet is valuable for a number of different reasons.

饮食中的蛋白质用处多多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

What does pop music do for us that's very helpful?

就这点而言流行音乐对我们来说有什么用处呢？

耶鲁公开课 - 聆听音乐课程节选

So we are actually using the C99 version of C, which really means nothing useful today other than to realize we are using that version.

所以我们在使用的C语言的C99版本，这对今天来说是没多大用处的,只是告诉我们使用的是那个版本而已。

哈佛公开课 - 计算机科学课程节选

You can't have slaves without wealth, because you got to feed them at the very least, and no matter how wicked a master you are, dead slaves are no good to you.

养奴隶没钱是不行的,因为不管你有多恶劣,也得供给他们生存的食物,死人是毫无用处的

耶鲁公开课 - 古希腊历史简介课程节选

Milton explains that the Licensing Order of 1643 is ineffective, it's useless because, and I'm quoting here, " order avails nothing to the suppressing of scandalous, seditious, and libellous books, which were mainly intended to be suppressed."

弥尔顿解释说《出版管制法》毫无作用，一无是处，我引用他的话说原因“,因为这个管制法对控制诽谤性的，有煽动性的，中伤他人的需要被控制的书籍毫无用处“

耶鲁公开课 - 弥尔顿课程节选

I did want to say a little bit more about kinases because they're so important in intracellular communication and kinases take advantage of the fact that proteins can often exist in more than one state, and that's what makes them useful molecules inside cells.

关于激酶我想再多讲一点,因为它们对细胞内通讯十分重要,因为激酶的优越之处在于,这种蛋白通常不只有一种状态,这也令它们在细胞中的用处极大

耶鲁公开课 - 生物医学工程探索课程节选

s not going in the future.-We are not going to get out of that, out of a lot of massive contraction. And massive contraction might cause some operations to perish. I knew some Anderson partners who were honest decent people who suffered terribly.

而且没有未来，-大规模缩减，And，it’,对我们来说没什么用处,而且会造成一些,行动的失败，我知道一些,诚实正直的安德森合伙人,损失惨重。

斯坦福公开课 - 经济学课程节选

One use, he said, would be to make one's corpse available to the study of anatomy.

他说，一个用处是,可以贡献于解剖学。

耶鲁公开课 - 公正课程节选

It's nice, but not particularly helpful.

但是并没多大用处。

麻省理工公开课 - 计算机科学及编程导论课程节选

Why is this useful?

这样做有什么用处呢？

哈佛公开课 - 计算机科学课程节选

And just as with variables, you should use some common sense, some style here, and the function's name should X Y communicate what it does, calling it X or Y or Z is generally not all that helpful.

就像变量，你使用一些常识，一些类型，和函数名需要,传达它所做的事情，把它叫做,或者Z通常是没有什么用处的。

哈佛公开课 - 计算机科学课程节选

One of the forms of processing that happens, that's very important in human gene expression is that some of the sections of the DNA molecule are not really necessary for describing the protein.

在人类的基因表达中,有一种非常重要的加工形式,那就是在DNA分子中有一些片段,对于编码蛋白质而言毫无用处

耶鲁公开课 - 生物医学工程探索课程节选

And the last is perhaps the most useful at least at first glance.

还有GetString，最后一个用处最大。

哈佛公开课 - 计算机科学课程节选