BBC news 2010-09-08 加文本

take advantage of利用,趁机利用,占…的便宜

例句：Take advantage of all educational opportunities.
      利用一切教育机会

step up(使)增加, (使)加快速度

例句：The girl stepped up to school.
      女孩子加快步伐去上学。

      He has stepped up into the management of the firm.
      他已升入公司的管理部门。

2. Traditionally human rights watches deployed our information in major western capitals to try to get those governments to use their influence on behalf of  human rights.

on behalf of为了…的利益

例句：He spoke on behalf of the plan.
      他为这项计划辩护。

代表…
 
例句：At the airport he read an address of welcome on behalf of the association.
      在机场上他代表该协会致了欢迎词。

      I'm writing on behalf of my mother to express her thanks for your gift.
      我代表我母亲写信, 对你的礼物表示感谢。

3.But latest reports say the firing has died down.

die down变得越来越弱直到消失

例句：The wind died down quite a lot.
      这风变得小多了。

      The fire is dying down. Put some more wood on!
       火快熄灭了, 再加点木柴!

4.Mozambique has reversed an increase in the price of bread that sparked off three days of rioting last week killing 13 people.

spark off导致, 为…的直接原因

例句：His speech seems to have sparked off a real argument.
      他的发言看来引起了一场严重的争论。

      The trouble was sparked off by an apparently harmless phrase.
      这场麻烦是由一句明显无恶意的话引起的。