The couple that I use often go in my wallet, but the rest are in a folder with sheets designed to hold business cards.

一些我经常用的放在我钱包里，但剩下的那些我放在了专门用于放商业卡片的文件夹里了。

youdao

But it is a notation that I will often use because otherwise the equations look so clumsy.

这种记号我会经常使用，因为不这样，方程会显得非常繁杂。

youdao

Contracts can evolve, and I use the term deliberately, but most often older contracts will still be supported as people migrate to newer versions.

契约可以演变，我有意地使用了这个术语，但大多数时候，旧的契约在人们迁移到新版本的过程中还要被支持。

youdao

And that's just a way of reminding you that we want to think carefully, but what are the things we're trying to measure when we talk about complexity here? It's both the size of the thing and how often are we going to use it? And there are some trade offs, but I still haven't said how I'm going to get an n log n sorting algorithm, and that's what I want to do today.

这只是在提醒你们我们要仔细的思考问题,但是当我们在讨论复杂性的时候,我们到底要衡量哪些东西？,是列表的大小和对其进行查找的频率吗？,这里面临一些取舍,但是我还没有说明,怎样得到一个n，log，n复杂度的排序算法,并且这是我今天想要讲的内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

The are often incomprehensible to anybody else, but I use them anyway.

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"I don't often use that word but then it is not very often that you get to meet one, " he said.

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We hear more and more the term "human capital", a perfectly appropriate economic term, I use it quite often, others of you in this room have used it but it is used in the context of, again, education - higher education - being a private investment and with the expected higher private return for those individuals capable of making that investment.

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