BBC在线收听下载:美国人权组织对美国情报部门的监控行为发起诉讼

词汇讲解：

1. release vt.释放; 放开
例句：He had won his first release from the fences of home. 
他第一次成功地脱出家庭的樊笼。 

2. contain vt.包含，容纳
例句：Most stews contain meat and vegetables. 
炖的食物大多是肉类和蔬菜。 

3. infiltrate vt.（使）渗透，（使）渗入
例句：The teacher tried to infiltrate her ideas into the children's minds. 
老师设法把她的思想渗透到孩子们的心中。 

4. deepen vt. 变深，加深
例句：Her wrinkles deepen with age. 
她的皱纹随着年龄增长而加深。 

5. promise vt.允诺，许诺
例句：We promise to deliver your order on time. 
我们保证你方定货能准时交货。 

6. appeal vi.（迫切）要求; 有吸引力; 求助（于）
例句：We will appeal to a great variety of sources of information. 
我们将求助于多种资料来源。 

7. announce vt.宣布; 述说
例句：Please announce to the children that there will be no school this afternoon.
请通知孩子们今天下午不上课。