Iran has denied charges that its nuclear program is for military use, arguing the goal is to develop nuclear energy for civilian purposes only.

VOA: standard.2010.06.09

For these purposes think about a channel, it only allows sodium to go through for example.

基于此目的,我们来讲离子通道,拿仅允许钠离子通过的通道作为例子

耶鲁公开课 - 生物医学工程探索课程节选

But as you can see, in the run I'm talking about this, there really only are experiments in a couple of the dimensions of the educational purposes that we talked about in the very beginning.

但你们也看到了，我探讨这一点的过程中，所进行的实验只涉及到,我们在最开始谈到的,教育目标的几个方面。

麻省理工公开课 - 媒体、教育、市场课程节选

He was very religious and thought the Bible should be used only for religious purposes.

VOA: special.2009.01.19

You can brute force it and unfortunately, the so-called Caesar cipher is not very secure because if you assume, for our purposes in English alphabet with 26 characters, say all lowercase for all uppercase, my God, you only have to try like 24, 25, 26 possible rotations until you can figure out what his secret message is.

你可以强行解密但是不幸地是，所谓的凯撒密码不是很安全的,因为如果假设，对于我们的26个字符的字母表,指明所有的小写为大写，我的天，你只要试24，25次，26次就可以解答出,密文的内容。

哈佛公开课 - 计算机科学课程节选

Iran says its nuclear program is only for peaceful purposes.

VOA: special.2009.02.07

I also want to assume for our present purposes that there's only pressure volume work going on, which is to say I want to put pdV p dV in here minus p dV for dw.

同时假定,对于我们目前的目的而言，只有压强做功这就是说,我要把这里的dw替换为负。

麻省理工公开课 - 热力学与动力学课程节选

At this point in time, they are only allowed to use the money for IMF purposes, to pay IMF staff or replenish accounts for use,"

VOA: standard.2009.04.20

It turns out that this space to which you'll have access throughout the year dubbed the lounge, has not only white boards and screens Xbox for teaching purposes; we may have also slipped in an Xbox, PlayStation a Wii and the PlayStation which actually does help make homework fun.

事实证明，这个你可以利用的一整年都可以使用的交流空间,也就是被称为休息室的地方,不仅有白板和教学用的屏幕,而且还有一个，一台Wii和一台,这些实际上都让写作业变得趣味无穷。

哈佛公开课 - 计算机科学课程节选

Third party processing could ensure the material is enriched only to the point needed for civilian purposes, and below the level called for in nuclear weapons.

VOA: standard.2009.10.04

Iran says its uranium-enrichment program is designed only for electricity generating purposes, and has allowed U.N.inspectors to visit a previously secret processing facility near the city of Qom.

VOA: standard.2009.10.28

Democrat Ike Skelton, who chairs the House Armed Services Committee, said fact that Iran concealed the existence of the enrichment site is not consistent with its claims that the facility will be used only for peaceful purposes.

VOA: standard.2009.09.25

Iranian President Mahmoud Ahmadinejad's assertion in a Friday news conference in New York that the new facility was not in violation of International Atomic Energy Agency guidelines and would be for energy purposes seemed to only increase the degree of anger on Capitol Hill.

VOA: standard.2009.09.25