正文

VOA慢速英语:NASA Launching Balloons Over Saint Louis to Study Ozone

2013-09-12来源:VOA

Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.

词汇讲解：

1. improve vt. 改善，改良
例句：The economy has yet to improve.
经济状况还需得到改善。

2. teste vt.测验；考查
例句：The problem is how to test it scientifically.
问题是我们怎样科学地检验它。

3. affect vt.影响；假装
例句：Slowing exports will affect domestic spending.
出口减少会影响国内消费。

4. decrease vt.减少，减小
例句：But contact between the two schools will decrease.
不过两所学校之间的联系将会减少。

5. remote adj.（时间上）遥远的；远离的
例句：This is not some remote danger.
这不是某种遥远的风险。

6. pollution n.污染（作用）；腐败
例句：You'll help reduce waste and air pollution.
您可以协助减少废物和空气污染。