BBC news 2011-01-15 加文本

1.And I promise throughout the period in which I assume this responsibility to respect the law and to carry out the political, economic and social reforms that have been announced.

carry out执行; 贯彻

例句：He carried out the plan in very detail.
      他一丝不苟地执行那项计划。

      If you make a promise, it should be carried out.
      你许了诺言, 就一定要兑现。

2.At the end of a dramatic day here in Tunisia, President Zine El Abidine Ben Ali fled with his family, no longer able to hold back the growing tide of public discontent and anger with his regime.

no longer不再, 已不, 不复, 再也不

例句：He was long a famous musician, but he plays no longer.
      他成为有名的音乐家已很久了, 但他现在不演奏了。

      The city's water supply is no longer adequate for its need.
      这个城市的供水已不敷需求。

hold back控制; 抑制

例句：She couldn't hold back her tears any longer and wept aloud.
      她再也忍不住了, 大声哭泣起来。

      Though very angry, I held back from telling him exactly what I thought.
      尽管我非常生气, 仍克制自己未将我的感想告诉他。

3.Thousands of protesters had earlier descended on the hated Ministry of Interior in Tunis, the symbol for many of a corrupt and discredited government.

descend on突然袭击;突然访问

例句：Bob and his girl friend descend on us for the weekend.
      鲍伯和他女友突然来我家过周末。

4.Continuing heavy rain is slowing down rescue work in southeastern Brazil where flooding and landslides have killed more than 500 people.

slow down(使)生产缓慢, (使)变得迟钝

例句：Business slows down in summer.
      夏季生意清淡。

      The increase of productions has now slowed down.
      现在产品的增长速度已经慢了下来。

5.The international oil company BP is to link up with Rosneft, the Russian state-run energy giant.

link up with(使)与…衔接

例句：We linked up with them at the gate of the zoo.
      我们在动物园门口与他们会合。

      There the irrigation canal links up with the reservoir.
      这条灌溉渠在那里与水库连接起来。