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BBC在线收听下载:飓风过后奥巴马重回竞选

2012-11-02来源:BBC

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词汇讲解：

1. invalid adj. 无效的
例句：This certificate is invalid.
这张证明已失效。

2. suspect vt. 怀疑
例句：I suspect that he is dead.
我怀疑他死了。

3. candidate n. 候选人
例句：We proposed him as candidate.
我们推荐他为候选人。

4. elect vt. 挑出
例句：He is elect chairman of the board.
他被选为董事长。

5. convince vt. 说服
例句：How can I convince you?
我怎样才能说服你呢？

6. serve vt. 服务
例句：I decided to serve the church.
我决心服务于教会。

7. conserve vt. 保存
例句：We must learn to conserve what remains.
我们必须学会保存那些剩余的资源。