VOA慢速英语:Why Do Americans Color But the British Colour? Thank Noah Webster

词汇讲解：

1. believe vt.相信; 信任; 以为
例句：Whom should we believe?
我们应该相信谁呢？

2. avoid vt.避开，避免
例句：Be sure to make it clear and concise and avoid long-windedness.
注意简明扼要, 反对长篇大论。

3. promote vt.促进，推进; 提升
例句：The policy will promote rather than hinder reform.
这项政策将促进而不是妨碍改革。

4. plough vt.用犁耕田; 开路
例句：Let poisonous weeds sprout, then uproot them and plough them under for manure.
毒草让它出来，然后锄掉，锄倒可以作肥料。

5. gain vt.获得; 赢得; 增加
例句：Its gain is the product of the gains of its constituent branches.
它的增益等于它含有的分支的增益的积。

6. definition n.定义; 规定，明确
例句：A similar definition holds good for latent heat of vaporization.
气化潜热的定义与此雷同。