"Hopefully,some of these steps will re-establish some of the security that has slipped away in recent years.

VOA: standard.2010.01.25

It turns out that this space to which you'll have access throughout the year dubbed the lounge, has not only white boards and screens Xbox for teaching purposes; we may have also slipped in an Xbox, PlayStation a Wii and the PlayStation which actually does help make homework fun.

事实证明，这个你可以利用的一整年都可以使用的交流空间,也就是被称为休息室的地方,不仅有白板和教学用的屏幕,而且还有一个，一台Wii和一台,这些实际上都让写作业变得趣味无穷。

哈佛公开课 - 计算机科学课程节选

After rising steadily for more than a year, the index of leading economic indicators actually slipped by .1 percent in April, according to a private research group.

VOA: standard.2010.05.20

Australian authorities originally said about 30 tons of oil were lost when 31 containers of fertilizer slipped from the Hong Kong-flagged "Pacific Adventurer" ship and punctured fuel tanks in the hull as the ship was battered in cyclone-stirred waters.

VOA: standard.2009.03.13