BBC在线收听下载:联合国安理会决定向南苏丹增派维和部队

1. underscore vt.划线于…下，强调;
例句：Even questions on the national driving exam underscore the potential peril.
甚至国家驾照考试里也有题目对潜在危险予以特别强调。

2. exacerbate vt.使恶化; 使加重; 激怒;
例句：Climate change may well exacerbate these problems.
气候变化很可能使问题加剧。

3. unsanitary adj.不卫生的，有碍健康的;
例句：They are often kept locked up in unsanitary conditions until their brutal painful death.
它们常常被关在不卫生的地方，直到受尽野蛮的痛苦致死。

4. farcical adj.荒唐的，荒谬的，可笑的;
例句：And third, he should annul last year's farcical parliamentary elections.
第三，他应该宣布去年的国会选举闹剧无效。

5. retinue n.一批随员;
例句：To feed and reward his huge retinue, he took 30000 donkey-loads of grain from kabul and ghazni.
为了养活和奖励众多的随从，他从喀布尔和加兹尼运了30000头驴的谷物。