Yvo de Boer,the U.N.'s top climate change official, told delegates there was still time to break deadlocks, but he said countries that could be more ambitious should act now.

VOA: standard.2009.09.28

There was a huge old insurrection called the Fronde, f-r-o-n-d-e.

有一起被称为投石党运动的起义

耶鲁公开课 - 欧洲文明课程节选

It's much better--the uncertainty about x/n is much lower for the case n = 100 than it was for the case n = 1, but it's still there.

当n=100时,x/n的不确定性,比n=1时要小得多,但是不确定性仍然是存在的

耶鲁公开课 - 金融市场课程节选