The government will probably spend less than it thought on the financial system.

VOA: special.2009.08.28

So, if we want to go from that stable state to that less stable state, we need to put in a certain amount of energy to our system, that difference between the free electron and the electron bound to the metal.

所以，如果我们想使电子,从稳态到达不够稳定的状态，我们需要引入一定数量的,能量到系统中，即自由电子和束缚于金属的,电子的能量差。

麻省理工公开课 - 化学原理课程节选

So there's less energy expanded by the system.

系统损失的能量也比较小。

麻省理工公开课 - 热力学与动力学课程节选

"If we do not fix our health care system, America may go the way of GM paying more,getting less and going broke,"

VOA: standard.2009.06.15

Cells that are within the region that becomes the nervous system become less like the zygote and more like the cells of our brain, neurons and glia, and cells of the mature brain.

位于神经发育区中的细胞,变得越来越不像受精卵,而像脑细胞,神经细胞或神经胶质细胞等等,这些成熟的脑组织中细胞

耶鲁公开课 - 生物医学工程探索课程节选

These are going to be fairly common-sense definitions, but they're important, and when you get to a problem set, really nailing down what the system is, not more, nor less, in terms of the amount of stuff, that's part of the system, it's going to be often very crucial.

这些是,很常识性的定义，但是很重要，当你要解决问题时，务必要搞清楚系统是什么，它包含多少物质，不能多也不能少，这往往,是非常重要的。

麻省理工公开课 - 热力学与动力学课程节选