That's because the particles differ in the amount of solar energy that they prevent from reaching the ground.

这是因为硫化物颗粒和煤烟颗粒在遮挡太阳能到达地面的数量不一样。

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From this perspective of relative rather than absolute supremacy, a superpower's strength lies as much in what it can prevent from happening as in what it can achieve.

从相对霸权而非绝对霸权的角度看，一个超级大国能阻止什么发生的力量同取得成绩的力量一样大，另一方面同样也在于它能阻止什么。

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He said this would prevent companies from creating new jobs.

他说这将阻止各公司创造新的职位。

《柯林斯英汉双解大词典》

To prevent that from happening, American Secretary of State John Hay proposed what became known as the "Open Door" policy.

VOA: special.2010.07.29

In order to keep the currency convertible they had to keep interest rates high to prevent people from demanding the gold.

为了保持货币的转换性,他们不得不将利率提高,以防人们向他们索求金子的兑换。

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They prevent the ligand from reaching its natural receptor, and so that antagonizes or inhibits the function of the natural ligand.

它们能够阻止配体与受体的结合,这样就拮抗或者说是抑制了配体的功能

耶鲁公开课 - 生物医学工程探索课程节选

The NPT has been subverted by the very forces it was created to prevent from acquiring nuclear weapons.

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This, by the way, is what some of the folks in Congress are trying to roll back and prevent from happening.

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For instance, the issue whether additional stimulus spending that is presented as temporary may end up being politically difficult to prevent from becoming permanent.

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