BBC在线收听下载:特朗普称美国政府或将关门

短语讲解：

1.Opposition demonstrators in Venezuela have set up road blocks and clashed with police in cities across the country to protest against President Nicholas Maduro's announcement of a new constituent assembly.

set up 建立; 准备; 安排
例句：They set up many branches throughout the country.
他们在全国建立好多分公司。

2.Human rights groups in Brazil have called on the government to increase protection for indigenous people.

call on 号召; 叫; 要求; 拜访（某人）
例句：I shall pay a call on my friend tomorrow.
我明天要去看望我的朋友。