VOA慢速英语:'Passive' Homes Save Energy, Money

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. approach n. 靠近, 接近, 临近；通路, 入口, 途径；方式, 方法
例句：His approaches to the problem are wrong.
他处理这个问题的方法是错误的。

4. seal vt. 封,密封
例句：The tube is sealed at both ends.
这管子两端是密封的。

5. leak n.漏洞, 裂缝；泄漏, 漏出物
例句：The rain dripped down from a leak in the roof.
雨水从屋顶的裂缝中滴漏下来。

6. airtight adj. 不透气的, 密封的
例句：Biscuits will stay crisp if you keep them in an airtight tin.
如果你把饼干放到一个密闭的铁罐里, 它就会保持松脆。

7. temperature n. 温度, 气温
例句：The room had a temperature of 18℃.
室内温度为十八摄氏度。

8. exploration n. 考察, 探索
例句：These new discoveries have broken new ground in the exploration of the cosmos.
这些新的发现在宇宙探索方面开辟了新道路。

9. specialized adj. 专业的;专业化的
例句：These tools are very specialized.
这些是专用工具。

10. addition n. 增加的人或事物
例句：They've just had an addition to the family.
他们家里刚刚添了一口人。