短语讲解：

1. Peaceful protests took place Tuesday night in Ferguson, Missouri.

take place 发生
例句：Earthquakes take place far underground. 
地震则发生在地球的极深处。 

2. U.S. Attorney General Eric Holder arrived in Ferguson on Wednesday to meet with community leaders, local officials and FBI investigators.

meet with 偶然遇到;  碰到
例句：At the same time, he would meet with opposition here. 
同时，他在这儿会碰到敌人的。 

3. Pakistan's parliament met Wednesday as thousands of protesters gathered outside.

thousands of 数千的
例句：Thousands of files were allegedly downloaded to his computer.
他的电脑被指下载了数以千计的文档。