VOA慢速英语:Saudi Arabia Ends Diplomatic Ties With Iran

短语讲解：

1. The demonstrators set fire in the building, destroyed furniture and threw papers off the roof.

set fire 纵火，放火烧
例句：The invaders wantonly set fire to Yuan Ming Yuan.
侵略者恣意妄为, 把圆明园付之一炬。

2. At least 40 protesters were arrested.

at least 至少
例句：In fact it requires at least n generators.
事实上，它至少要有n个元素。

3. Large protests have taken place since Saturday in many countries, including Bahrain, where police used tear gas on the protestors.

take place 发生，举行
例句：His graduation will never take place if he doesn't get to work.
如果他不下功夫，就永远不会毕业。

4. The State Department said the execution of Nimr would add to the tensions between religious groups in the Middle East.

add to 增加， 加强
例句：I have nothing to add to my earlier statement.
我对我先前说的话, 没有什么补充的。