13-06-19 The quality of a performance does not drive the amount of applause an audience gives, a study suggests. 一项研究发现，一个演出的质量不会左右观众掌声的数量。 Instead scientists have found that clapping is contagious（传染的） , and the length of an o...

11-09-11 Ask yourselves -- where would we be right now if the people who sat here before us decided not to build our highways, not to build our bridges, our dams, our airports? What would this country be like if we had chosen not to spend money on public hig...