VOA慢速英语:South Africa's Huge HIV Testing Campaign

例句：In his blind haste he almost ran into the river.
      他匆匆忙忙地几乎跑到河里去了。

2.launch vi.投入；开始；着手进行

例句：They will launch on the production of passenger cars next month.
      他们将于下个月开始生产客车。

3.previous adj.先前的, 以前的

例句：The author mentioned it in the previous paragraph.
      作者在前一段里提到这件事。

4.register v.显出

例句：A surprise that he was unable to hide registered on his face.
      他脸上露出掩饰不住的惊讶的表情。

5.perception n.感知(能力); 觉察(力)；知觉

例句：He was a man of keen perception.
      他是一个感觉敏锐的人。

认识, 观念, 看法，见解

例句：What's your perception of the matter?
      你对此事有什么看法?

6.worthwhile adj.值得的, 值钱的, 有价值的
 
例句：The teacher recommended some really worthwhile novels to his students.
      老师推荐给学生一些真正有价值的小说。