New laws are making it easier all the time for nonsmokers to lead smoke-free lives.

新法律的制定，使得任何时候不抽烟的人都可以享受无烟生活。

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During the reperfusion period, endothelial dysfunction, activation of endogenous enzymes, leucocyte recruitment and activation all lead to the generation of oxygen -derived free radical.

再灌注期间，上皮细胞功能障碍，内源酶激活，白细胞聚集并活化，都会导致氧自由基的产生。

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There was nothing else the old couple had to worry about. All they wanted was to lead their own life free from all these years of unhappiness from their marriage.

于是，这对老夫妇再也不用担忧什么了，他们现在渴望的就是过各自的生活，把自己从这些年不幸的婚姻中解放出来。

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"We are trying to encourage Burma to conduct the kind of internal dialogue with all of the stakeholders including Aung San Suu Kyi that could lead to there being fair,free and credible elections next year,".

VOA: standard.2009.11.12

If you let kids transfer wherever and whenever they wish without penalty, it could lead to a free-for-all.

FORBES: Bo (Ryan) Don't Know PR: Wisconsin's Transfer Mess Highlights Double-Standard in College Athletics

In memory of the loved ones we have lost and inspired by the resilience of those living with the disease, let us strengthen our resolve to lead our Nation toward a future free from cancer in all its forms.

WHITEHOUSE: The White House

Fair's baseline jumper gave Syracuse the lead and Smith's free throw tied it at 48-all with 1:39 to go.

WSJ: No. 10 Louisville beats No. 12 Syracuse 58-53