But he said the nation must not forget the near-collapse of the banking system in two thousand eight without fixing its causes.

VOA: special.2010.04.16

We had a big scare in 1998; it started with the Asian financial crisis and then it spread to Russia and there was this terrible collapse in Russia in 1998, when the government couldn't pay its debts.

我们经历过最大的一次经济创伤是在1998年;,这次金融危机因亚洲金融危机而起,然后蔓延到俄罗斯,随后对俄罗斯的经济产生了极大地冲击，俄政府担负不起债务。

耶鲁公开课 - 金融市场课程节选

I am going to say if that electron is to stay in its orbit, that is to say it doesn't flee the atom, it doesn't collapse under the nucleus then the sum of the forces on the electron must be zero No net force. And so that will be the sum of a dynamic force plus an electrostatic.

如果电子会保持在它的轨道上运行,既不脱离原子的话，它就不会由于原子核对它的吸引力而被瓦解掉,电子所受的合力一定为零,由于没有合力,所以电子所受力为动态力和静电力的总和。

麻省理工公开课 - 固态化学导论课程节选