VOA慢速英语:Young Navajos Study to Save Their Language

1. discourage vt.劝阻; 阻碍; 使气馁
例句：Cities will have a powerful incentive to discourage recycling.
城市将采取有力的措施阻止再循环。

2. promote vt.促进，推进; 提升
例句：We are going to promote you.
我们要提升你了。

3. establish vt.建立，创建
例句：The politicians jockeyed about in order to establish relative power within the party.
为了确立在党内相应的权力，政客们调整了自己的位置。

4. disappear vi. 消失；失踪
例句：She disappeared down the corridor.
她消失在走廊尽头。

5. protect vt. 保护，防卫
例句：A line of forts was built along the border to protect the country against attack.
边界沿线构筑了碉堡，以防敌人进攻该国。

6. believe vi. 信任；料想
例句：We all believe in good,free education for our children.
我们都相信对我们孩子们的良好的、自由的教育。