VOA慢速英语:Number of Foreign Students in US Hits New High

例句：I apprehend no worsening of the situation.
       我不担心局势会恶化。

      My temper worsened as the day went on.
      今天我脾气越变越坏。

2.enroll v.登记,使加入

例句：I am preparing to come to enroll in early September.
      我正在为9月初来报到准备。

3.decrease vt.vi.(使)缩短; 减小, 减少

例句：The traffic accidents in the city decreased last year.
      该城市去年交通事故减少了。

      The population began to decrease.
      人口开始减少。

4.downturn n.(价格或活动)开始下降

例句：There was a downturn in interest rates this week.
      本周利率下调。

      The 1990s witnessed a sharp downturn in the party’s fortunes.
       20 世纪90 年代是该党遭遇严重挫折的时期。