VOA慢速英语:How Nine Researchers Won Their Nobel Prizes

例句：Is the child abnormal in any way?
       这孩子是否在哪方面有点不正常?

      This warm weather is abnormal for February.
      二月里这种温暖的天气不太正常。

2.demonstrate vt.说明, 演示

例句：Recent events demonstrate the need of change in policy.
       最近的事态表明政策需要改变。

      This demonstrates that all power belongs to the people.
      这说明一切权力属于人民。

3.transmit v.传导

例句：Glass transmits light but not sound.
      玻璃传导光, 但不传导声音。

4.infection n.〈医〉传染, 感染

例句：White blood cells fight infection.
      白血球抵抗感染。

5.estimate n.估计, 估价

例句：The painter's estimate for painting the whole house was 1000 dollars.
       油漆匠对油刷整个房子的估价是1000美元。

       This is an outside estimate of the price.
      这是最高的估价。

6.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。