BBC news 2010-05-18 加文本

1.Mrs.Figueres was nominated by the Costa Rican government after Yvo de Boer of the Netherlands announced he was stepping down after almost four years in the job.

step down退休, 辞职

例句：The manager had to step down on account of poor health.
      那位经理由于身体不好, 只能辞职不干。

2.The International Crisis Group says that from eyewitness' evidence, it believes at least 30,000 civilians were killed and countless others wounded and deprived of food and medicine.

deprive of剥夺某人的…

例句：They deprived the criminal of political rights for all his life.
      他们剥夺那罪犯的终身政治权利。
 
      These misfortunes almost deprived him of his reason.
      这些不幸的事几乎使他丧失了理智。

3.But it comes down most heavily on the government, saying there's evidence that intentionally shelled civilians, hospitals and humanitarian operations.

come down on惩罚,索取 处罚,批评

4.On the brink of war in the Thai capital a faint glimmer of peace, several hours after the government's deadline expired.

On the brink of在…边缘,濒于,接近,几乎,差点

例句：The species is on the brink of extinction on the New Zealand mainland.
      这些物种在新西兰大陆上濒临灭绝。

      The UK's only helicopter manufacturer was on the brink of insolvency.
      英国唯一的直升飞机制造商处于破产的边缘。