VOA慢速英语:International Community Warns of a Possible Famine in South Sudan

1. remain vi.留下; 保持
例句：Unemployment will remain structurally high.
失业率仍然保持结构性高位。

2. estimate vt.估计，估算
例句：That estimate seems unrealistically low to me.
上述估计在我看来低得有些离谱。

3. famine n.饥荒; 饥饿
例句：They had more varied diets and so weren't at risk of famine.
他们的饮食更多样化，因此受到灾荒影响的风险也较小。

4. support vt.支持; 帮助
例句：We are all for policy support for entrepreneurs.
我们完全赞同政策对于企业家的扶持。

5. displace vt.移动，移走; 替换
例句：New technologies often fail to displace old ones.
新技术常常无法替代旧的技术。

6. troop n.军队; 一群
例句：The defense secretary said troop numbers would be cut.
帕内塔说，美国军队人数将被削减。