CNN news 2011-06-21 加文本

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短语讲解：

1. I'm here today again to apologize for the personal mistake I have made and embarrassment I have caused.

apologize for为…道歉, 替…道歉
例句：I must apologize for the dreadful mistake I made.
我为我所犯的严重错误深表歉意。

2. I hope to be able to continue to work that citizens at my district elected me to do, to fight for the middle-class and those struggling to make it.

fight for为…而战斗〔竞争〕
例句：They fight for defend the county.
他们为保卫祖国而战斗。

3. Al-Qaeda seeks to perpetuate itself, seeks to find replacements for those who have been killed, and remains committed to the agenda that bin Laden put before them

seek to力图，试图，设法
例句：I sought to change her mind.
我试图改变她的心意。
commit to对…作出承诺, 承担义务, 担负责任; 使(自己)致力于…
例句：He has committed himself to the cause of education.
他已决心献身教育事业。