The legislature would have the power to keep the territory open to slavery and,in time,help it become a slave state.

VOA: special.2009.04.30

But it's really good. I'll probably keep doing Open Course Ware stuff like, for fun,

但是这很好。我可能会一直为了好玩上公开课，

开放式的课程？ - SpeakingMax英语口语达人

She soon found it was impossible to keep the office open without more financial support.

VOA: special.2011.06.12

Lithuania - one of the most nuclear-energy dependent nations along with France asked the EU to allow it to keep the plant open for another two to three years.

VOA: standard.2010.01.01

But it's a struggle to keep the center open.

VOA: standard.2010.04.29