The principle is very simple, but it's also very effective as a lot of spam contains the same words and sometimes the same repetition of words.

这个原则非常简单，但是也非常有效，因为大量垃圾邮件都包含相同的单词，并且有时会包含单词的相同的重复。

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This principle is an extension of the management principle and is necessary for effective and efficient administration of the project commitment.

该原则是管理原则的一个扩展，对于项目承担义务管理的效率和效力是必不可少的。

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Willingness and ability to communicate: The most valuable principle when identifying an architect among developers is effective communication.

愿意并有能力进行沟通：在开发人员中发现架构师的最有价值标准是有效的沟通。

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The second principle of effective reform is to have insurance choices so varied and responsive to individual needs that you could fire your insurance company if you wanted to.

CNN: McCain's October 11, 2007, speech on health care

Kate McIver, of the Pain Research Institute at Liverpool University, said work done there on helping amputees create mental images of pain-free limbs - which operated on the same basic principle as the US research - had also proved effective.

BBC: NEWS | Health | Massage illusion helps amputees

And he went on to talk about a concrete vote the Senate will take in the next few weeks on the so-called Buffett Rule, his principle, named after Warren Buffett, built around the idea that a billionaire should not pay a lower effective tax rate on his income than his secretary.

WHITEHOUSE: Press Briefing