School administrators point out that the texts may be free online, but students need a way to access them.

VOA: special.2009.08.27

We need to think that the actions in the story were in some way free and absolutely, perfectly undetermined.

得让读者以为故事中角色的所作所为某种程度上,都是自由的，完全不是事先确定的。

耶鲁公开课 - 弥尔顿课程节选

No. He would give it to me for free. I don't need to buy it.

没有。他会免费送给我的。我不需要买。

我喜欢的建筑物 - SpeakingMax英语口语达人

We need free markets, but we need them to be principled.

WSJ: Book Review: Models Behaving Badly

Free markets need to have sensible rules of the road.

FORBES: Our Cover Story

Only multi-millionaires with lots of free time need apply.

BBC: NEWS | Science/Nature | Space future: Race for the X-Prize