VOA慢速英语:Bernanke Says Federal Reserve Will Act if US Economy Weakens

例句：He is a reasonable fellow.
       他是位通情达理的人。

2.lower vt.vi.(使)降低; (使)跌落

例句：The sun lowers in the west.
      太阳从西边落下。

vt.削弱; 削减

例句：A cold had lowered her resistance.
      感冒已削弱了她的抵抗力。

3.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。

4.monthly adj.adv.每月的[地], 每月一次的[地]

例句：The rent on his apartment was his biggest monthly expense.
      他的房租是每个月最大的开支。

5.largely adv.在很大程度上, 大半地, 主要地

例句：This country is largely desert.
      这个国家大半都是沙漠。

      His success is largely due to his own hard work.
      他的成功主要是靠他自己的努力。

6.fairly adv.相当地, 适度地

例句：This is a fairly easy book.
      这是一本相当容易的书。