The idea behind Britain's health-care system is straightforward, says Michael Summers of the non-profit Patients Association that helps people understand the National Health Service.

VOA: standard.2009.09.24

We had no idea what was going on with the system, with how people were using it. We were making guesses.

我们不知道这个系统会怎么样，也不知道人们用得怎么样，我们只是在猜测。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

Schrodinger said I am going to take that same idea, and I am going to apply it to a larger scale system.

薛定谔说我将用同样的思路，我要把它用到一个更大的系统中。

麻省理工公开课 - 固态化学导论课程节选

Jeff Sessions is a Republican from Alabama: "This legislation may have a great vision, it may have a great idea about trying to make the system work better.

VOA: standard.2009.12.25

So, the idea that theorists suggest-- and it may be unreachable-- but the perfect financial system would have all of our risks pooled completely.

理论家提出的这一理论-,可能无法达到-,但是一个完美的金融体系,能够将所有的风险完全分摊。

耶鲁公开课 - 金融市场课程节选

Anybody have an idea? What's the one function of state? I'm the system, the rest are the surrounding. What's the one function of state that's constant when I'm doing all my chemical reactions to move my arms around?

态函数又是什么呢？,我是一个系统，其余的是周围的环境,那么当我在做所有的化学反应,去四处移动我的手臂的时候,什么量是常数？

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