英音听力讲解:世界卫生组织宣布美洲地区成功“消除麻疹”

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1. fertility n.肥力; （土地的） 肥沃; 丰产
例句：Their work includes the identification of genes which govern the growth rate and fertility
他们的工作包括找出那些控制生长率和繁殖能力的基因。

2. approve vt.赞成，同意
例句：Not everyone approves of the festival
不是所有人都赞成庆祝该节日。

3. avoid vt.避开，避免
例句：The pilots had to take emergency action to avoid a disaster
飞行员不得不采取紧急措施避免灾难的发生。

4. announce vt.宣布; 述说; 声称
例句：He will announce tonight that he is resigning from office
他将于今晚宣布辞职。

5. deteriorate vt.使恶化
例句：There are fears that the situation might deteriorate into full-scale war
人们担心形势可能恶化而演变成一场全面战争。

6. negotiate vi.谈判，协商，交涉
例句：It is not clear whether the president is willing to negotiate with the democrats
还不清楚总统是否愿意和民主人士洽谈。