At the same time,groups in the North helped free-state settlers move there,too.

VOA: special.2009.04.30

and so at the same time limits the free play within the structure.

所以这局限了结构内的自由游戏。

耶鲁公开课 - 文学理论导论课程节选

I mean a blanket term, a guiding concept, a transcendental signified, something that explains the nature of the structure and something also, as Derrida says, which allows for limited free play within the structure; but at the same time the structure has this kind of boundary nature.

是一个概括性称呼，一个引领概念，一个超验所指，它解释了这个结构的内涵，正如德里达所说，它允许在结构内有限的自由游戏;,但同时这个结构也有限性。

耶鲁公开课 - 文学理论导论课程节选

He tested the free-diving self-propelled submersible - one of only two in existence at the time - on increasingly deep dives off the California coast.

VOA: standard.2010.06.21

So, I encourage you to do that the next time you have some free time on your hands, maybe at IAP or some time like that.

下次你有空余时间时,我鼓励你去看一看，也许在IAP或者什么时候。

麻省理工公开课 - 化学原理课程节选

"Everyone is entitled to free health care at the time of need, both in relation to consulting their general practitioner, and to hospital treatment and operations.

VOA: standard.2009.09.24

"Wilson has to be given the credit for delivering a major defeat to the Soviet Union at a time when the Soviet Union was a threat to the free world."

VOA: standard.2010.02.11