Other opposition parties,rights groups, anti-corruption campaigners and the Nigerian Bar Association have criticized the government over its handling of the multi-million-dollar cash-for-contract scandal involving U.S.company Halliburton and top Nigerian officials.

VOA: standard.2009.04.18

A progress bar is not supposed to print one hundred lines just to update its status; generally we like to see a little animation.

一个进度条不应该是打印100行,只是更新它的状态，一般地，我们,想看到一点生机。

哈佛公开课 - 计算机科学课程节选

If x is high relative to x-bar--this is positive-- then y tends to be low relative to its mean y-bar and this is negative.

如果x比x均值要大,这个为正,而y比y均值小,这个为负

耶鲁公开课 - 金融市场课程节选