BBC news 2010-05-19 加文本

ought to应该

例句：I think you ought to be able to stand on your own legs.
      我认为你应该能够自立了。

      The punishment ought to fit the crime.
      罚需当罪。

2.The Taliban said it carried out the bombing, the worst in the city for months.

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。

3.And scientists are increasingly worried that the oil could get caught in a current that could take it to Florida, damaging coral reefs and killing more wildlife there.

get caught in遭受,遭遇

例句：We must risk getting caught in a storm.
      我们必须冒为暴风雨所阻之险。

4.The new rule concerning penalty kicks will be in force for the World Cup which starts on June 11th.

in force生效的, 有效的

例句：Is that very old law still in force?
      那项古老的法律仍然有效吗?