PAR Method is a formalization method of algorithm design, development and verification, and it is simple and useful.

薛教授提出的PAR方法是一种简单实用的形式化算法设计、开发和证明的方法。

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Portlet messaging using the portlet API is a simple and useful way to enable portlets within a page to communicate with each other.

使用Portlet API的Portlet消息传递是一种简单而有效地方法，可以使页面中的Portlet能够相互通信。

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In this section, you learned how simple and useful a meta-form is to make changes to existing forms and get the forms back out for quick processing.

通过这一节我们看到，元表单修改已有的表单再返回去进行快速处理是多么简单有效。

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The bag is one of the most simple and useful things in the world.

VOA: special.2009.01.25

What I mean by that is, pick a simple set of values, and let's walk through it to see what happens. And this is useful because it's going to allow me to A make sure that I've got something that's going to terminate, it's going to let me make sure that in fact I'm doing the right kinds of updates.

原因你们知道的，好，模拟代码,我的意思就是,选出一系列的值来,然后模拟下代码的执行来看看结果,这很有用因为这让我确保我的程序在某个地方,可以终止，还会让我确保实际上我。

麻省理工公开课 - 计算机科学及编程导论课程节选

You open what we call the "text editor," the specific one we used on Wednesday was called Nano, -- which is similar to Notepad or TextEdit -- totally simple, kind of dumbed down but in a useful way so that you can just focus on writing code and not learning some new interface.

你先打开那个“文本编辑器“,就是我们周三用过的叫做Nano的编辑器，这个跟写字板和记事本差不多-,非常简单的，只是通过一种有用的方法而进行精简了的,所以你们可以把注意力集中在编写代码上,而不需要学习一些新的界面操作。

哈佛公开课 - 计算机科学课程节选

Risk managers, investors, and regulators should keep a watchful eye on these apparently safe, simple, transparent, and useful derivatives.

FORBES: UBS' $2B Man, Kweku Adoboli, And The Perils Of ETFs

Apparent simple, safe, useful, and transparent, ETFs have shown to be much more dangerous than originally thought.

FORBES: UBS' $2B Man, Kweku Adoboli, And The Perils Of ETFs

Honoring the dynamic tension between asset enhancement and liabilities reduction is a simple but useful way of starting conversations about important topics within companies.

FORBES: Should You Enhance Your Assets Or Reduce Your Liabilities?