BBC在线收听下载:科学家称北极冰层融化速度惊人

1. prosecutor n.检举人; 起诉人
例句：This would help the prosecutor gather evidence against him which could be used in court.
这将有利于控方律师搜集对他不利的证据以在法庭上指控他。

2. attack vt. 攻击，进攻，抨击
例句：In colonial days the French armed the Indians to attack the British.
在殖民地时期法国人武装印度人去抗击英国人。

3. resign vt.辞职; 放弃; 屈从
例句：It was better to submit, to resign oneself to the inevitable.
还是屈服，听任不可避免的命运来摆布的好。

4. tackle vt.着手处理; [橄榄球]擒住并摔倒（一名对方球员）
例句：The first reason to tackle these problems is to save children's lives
果断处理这些问题的首要原因是为了挽救孩子们的生命。

5. integrity n. 完整; 正直，诚实
例句：I have always regarded him as a man of integrity
我一直认为他正直诚实。