We hope to prevent anything unpleasant from happening.
我们希望防止任何不愉快的事发生。
It was too late to prevent the story from appearing in the national newspapers.
要阻止全国性报纸刊登这件事情已为时太晚。
The agreement sets targets to prevent the Earth's average temperature from rising more than two degrees Celsius above pre-industrial levels.
VOA: special.2009.12.26
Twenty-one nations around the world recently joined forces to better understand and prevent greenhouse gas emissions from farms.
VOA: special.2010.01.05
He wants to prevent banks from using government-insured deposits to make risky investments.
VOA: special.2010.01.22
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