VOA慢速英语:Grow It Yourself: Diving Into Aquaponics

2. reduce vt. 缩减, 减少; 降低
例句：We must try our best to reduce the likelihood of war.
我们必须尽最大努力减少战争的可能性。

3. discover vt.发现；碰见, 撞见
例句：When returning back, he discovered the room to be in disorder.
回家后, 他发现屋子里乱七八糟。

4. skeptical adj. 怀疑的,多疑的
例句：Many were skeptical about this solution.
许多人对这一解决办法表示怀疑。

5. raise vt. 抚养; 饲养
例句：They raised five thousand chrysanthemums last year.
去年他们种了五千株菊花。

6. channel n. 频道,波段
例句：There are at present three television channels.
目前有三个电视频道。

7. advance vt. (使)前进, (使)发展; 促进
例句：The president has done his utmost to advance the national interest.
总统已尽了最大努力来增进国家的利益。

8. project n. 项目, 计划, 方案, 课题
例句：The new dam is a major construction project, funded by the government.
新水坝是政府出资建造的一个大工程项目。

9. slum n. 贫民窟, 贫民区, 棚屋区
例句：As a social worker, she does a lot of work in slums.
作为一个社会工作者, 她在贫民区做了大量的工作。

10. model n. 模式
例句：The nation's constitution provided a model that other countries follow.
该国的宪法提供了他国效法的模式。