Poland's speaker of parliament, Bronislaw Komorowski, became the country's interim head of state Saturday after Polish radio adjusted its regular programming to announce that President Lech Kaczynski and his wife Maria were among those killed in a plane crash in Western Russia.

VOA: standard.2010.04.10

In the case here, tha t I just illustrated with the little cart going down the valley, would be exactly the same with regular energy, the equilibrium state is one of lowest energy, right.

在现在所考虑的情况下,我刚才所描述的小车沿着山谷下行，结论会像能量判据一样，平衡态是能量最低的态。

麻省理工公开课 - 热力学与动力学课程节选

People in the state of nature may have regular and continual contact with one another.

在自然状态中的人们可能互相,有定期并持续的联系。

耶鲁公开课 - 政治哲学导论课程节选