VOA慢速英语:Ukraine and NATO: Russian Troops Crossed Into Ukraine

短语讲解：

1. He said medical experts, in his words, "are seeing today, in contrast to previous Ebola outbreaks: multiple hotspots within these countries — not a single, remote forested area, the kind of environments that have been tackled in the past.

in contrast to 相比之下
例句：In contrast to her elder brother, she was always considerate in her treatment of others. 
和她哥哥完全不一样，她对别人总是很体贴。 

2. The World Health Organization says that the Ebola outbreak in West Africa could infect more than 20,000 people over the next six months.

more than 多于
例句：Margaret needed support more than ever. 
玛格丽特比以往更需要关心。 

3. The effort could take up to nine months and almost 500 million dollars.

take up 开始从事; 接受（提议）; 占用
例句： When did he take up football? 
他是什么时候开始踢足球的? 

4. The program aims to bring poor people into a modern economy and reduce their dependence on money lenders.

dependence on 依靠,依赖
例句：He refused to live in dependence on his uncle. 
他拒绝依靠他叔叔生活。