BBC在线收听下载:尼日利亚发生两起爆炸事件

短语讲解：

1. Two explosions in the Nigerian city of Jos have caused a large number of casualties.

a large number of 很多
例句：He added that a large number of collectors live in london.
他又补充说，有大批收藏家居住在伦敦。

2. The BBC has been told scores have died while an official of the Nigerian National Emergency Management Agency told the French news agency there were at least 118 victims.

at least 至少
例句：At least that's the theory.
至少理论上是这样。

3. Although it's not known who carried out the attack the Islamist extremist group known as Boko Haram has targeted Jos City before, bombing several churches in what was then seen as efforts to ferment religious violence.

carry out 执行; 进行
例句：They should also carry out some fundamental reforms.
这些政府也应该执行一些基础性的改革。

4. Thailand's caretaker prime minister Niwattumrong Boonsongpaisan has called for fresh elections, following a declaration of martial law by the army.

call for 需要; 要求
例句：Chinese companies call for fairer treatment from foreigners.
中国公司要求更公平的对待外国人。

5. There are troops on the streets, but a senior opposition leader has promised to keep up the fight. Michael Bristle reports.

keep up （天气）持续不变; 保持; 保养
例句：Magritte could not keep up this phlegmatic act, however.
话虽如此，但他似乎无法这种保持冷静的行为。

6. Four of the five guilty men come from one Chechen family, three brothers and an uncle.

come from 来自某处; 出生于
例句：Where will all this innovation come from?
这些创新来自哪里？