Mr.Obama is said to have declared that the United States and Cuba are "on a path of change", while reminding his fellow heads of state that the democratic process that brought them into office does not exist in Cuba.

VOA: standard.2009.04.18

So that's a big help. And equilibrium happens when there isn't any possible change of state that would satisfy this.

这个非常方便，当所有的变化,都无法满足这个公式的时候,系统就达到了平衡。

麻省理工公开课 - 热力学与动力学课程节选

You need a functional form that connects the value at one state of matter, the freezing point of water to another phase change, the boiling point of water.

你需要一个函数形式来,连接物质某个态对应的温度值，如水的冰点，和另一个相变,如水的沸点。

麻省理工公开课 - 热力学与动力学课程节选

With the North Atlantic Treaty Organization facing divisions over the war in Afghanistan and advanced economies struggling for a united approach on climate change, the Secretary of State urged alliance states to again summon the resolve and idealism that won the Cold War.

VOA: standard.2009.11.09

The Protestant Reformation, and especially the rising energies of Puritanism in the early seventeenth century, are beginning to do a lot to change this state of affairs.

新教宗教改革，尤其是活力不断上升的清教主义,在17世纪早期，为了改变这种状态开始做出许多努力。

耶鲁公开课 - 弥尔顿课程节选

Often, for a particular state change, it is easy to calculate two of these, but not the third.

对于一些特定的状态变化，它们中的两个很好计算，但是第三个往往不容易计算。

麻省理工公开课 - 热力学与动力学课程节选

Certainly in principle we know how to calculate this and other stuff for a change in state of this sort, for lots of changes of state.

的确原则上我们可以对某个状态变化,计算这些物理量,或者其他物理量，对其他的变化也可以做相同的计算。

麻省理工公开课 - 热力学与动力学课程节选