VOA慢速英语:Somewhere a Language Dies Every Two Weeks

例句：Their hostile looks showed that he was unwelcome.
       他们怀敌意的表情说明他不受欢迎。

      The local people are hostile to outsiders.
      当地人敌视外地人。

2.document vt.用文件证明，记录, 记载

3.fluently  adv.流利地,流畅地

例句：He speaks English very fluently.
      他说英语说得很流利。

      He boasted that he could speak six languages fluently.
      他自夸自己能流利地讲6种语言。