BBC在线收听下载:尼日利亚闹市发生自杀式爆炸袭击

1....soon after with young men took to the streets and burned tires, as they accused politicians from all parties of not doing enough to protect the population.

take to the street 走上街头（游行，抗议）

Groups of women took to the streets to protest against the arrests.
成群结队的妇女上街抗议逮捕行动。

Crowds armed with sticks and stones took to the streets.
人群手持棍棒和石块走上了街头。

2.Burkina Faso has taken another step towards return to civilian rule with a signing of a charter, mapping out a year long transition to elections.

map out 在地图上标出；筹划

I went home and mapped out my strategy.
我回到家，制定出了我的策略。

I cannot conceive of anybody writing a play by sitting down and mapping it out.
我无法想像有人能坐下来凭空想就写出剧本。