With the furs on his back, and his gun in his arms, he stepped out on the fallen tree.

VOA: special.2010.06.26

And what's fallen out when we do that, because in each case, one of the first derivatives gives us the entropy.

当我们这样做时就得到了结果，因为在这些例子中，一阶导数是熵。

麻省理工公开课 - 热力学与动力学课程节选

Long after the moon came out and the young man had fallen asleep Sylvie was still awake.

VOA: special.2010.04.03

The faces of the fallen looked out at the Senate hearing room -- the images of coal miners killed on the job.

VOA: standard.2010.04.27

The foreign ministers had expected to take up the question of how Europe and Asia could cooperate to pull the world's economy out of the downturn it has fallen into since the global financial crisis began.

VOA: standard.2009.05.25