VOA慢速英语:American History: Labor Unrest Grows as Cleveland’s Measures Fail to Ease Recession

例句：During his presidency many changes took place.
      在他任职期间发生了许多变化。

2.upper adj.较高的, 上部的

例句：He is a member of the upper house of legislature.
      他是上议院的成员之一。
 
3.claim vt.声称, 断言

例句：They claim to have discovered a cure for the disease.
      他们声称已经发现了治疗此病的一种药物。

4.denounce vt.公开指责，谴责，斥责

例句：We should denounce a heresy.
      我们应该公开指责异端邪说。

      He denounced her as traitor.
      他指责她是叛徒。