"Those are the complaints that we are actually dealing with at this point in time." VOA News asked Kippen if the on-site investigations of massive ballot box stuffing and other acts of election fraud will take weeks or,as some predict, months to complete.

VOA: standard.2009.09.15

So just to hammer home this point, for now, a function really is like a black box.

现在再三强调，让你们彻底了解这一点，一个函数就像是一个黑盒子。

哈佛公开课 - 计算机科学课程节选