Much harder,of course, is changing a system that let companies take the risks that led to the current financial crisis.

VOA: special.2009.03.20

So, these on-changing properties that describe the state of the equilibrium state of the system are called state variables.

这些描述,系统平衡态的,变化的属性,就叫做状态变量。

麻省理工公开课 - 热力学与动力学课程节选

These are physical knobs that are available us as experimentalists. And so when we turn these knobs on our system, we want to know how the enthalpy is changing for that system.

这些都是我们做实验可,以得到的物理变量,所以当我们在系统中,改变这些量的时候。

麻省理工公开课 - 热力学与动力学课程节选

Mr.Orban adds that his government faces the task of "changing the constitution, saving the health care system, restoring public order and putting the economy back onto its feet."

VOA: standard.2010.05.29

The same thing with these cells here, as these cells undergo continual divisions, they're changing in ways that make them mature, that make them more like the mature cells of the nervous system, for example, if that's where they end up being but they're losing potential as they go through that differentiation process.

细胞也是这样,在连续分裂的过程中,它们愈发成熟,比如说,变得越来越像,神经系统细胞,如果它们最终将构成神经系统的话,那它们在分化的过程中,就失去了许多潜能

耶鲁公开课 - 生物医学工程探索课程节选

to say 'get real.' What is dangerous is to commit "This is extraordinary, to spend a whole lot of money that we might not have on a system that most certainly won't help when the world is changing, when we're facing new threats, where now more and more military experts are saying there are different alternatives."

VOA: standard.2010.04.30