英音听力讲解:英国科学家癌症研究发现重要信息

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短语讲解：

1. The Egyptian security forces have carried out a day-long assault in Cairo on camps of supporters loyal to the ousted President Mohammed Morsi with the heavy loss of life.

carry out 履行
例句：No matter what we do, we must carry out our duties. 
无论干什么工作,我们都应履行自己的职责. 

2. But Muslim Brotherhood has said more than 2,000 people died in the clashes.

more than 不只是
例句：More than 100 people were wounded.
爆炸还造成100多人受伤。

3. I'm sorry that I hurt the United States. Then added that he was dealing with a lot of issues at the time that he leaked that a slew of classified information.

a lot of 许多
例句：He knew a lot of facts!
他知道了许多真实的事！

4. The initial session is likely to focus on borders and security.

focus on 致力于；使聚焦于
例句：That's all you want to focus on.
你只需将你的注意力集中于此。

5. MSF has always been famous for being the last charity to pull out of war zones.

pull out of 退出，取消
例句：He threatened to pull out of the common market.
他威协要退出共同市场。

6. We can actually start to see the very core changes we see in genes in the DNA of cancers and what that means is we can start to think about what actual processes are directly starting to damage the DNA.

think about 考虑…；捉摸…
例句：Leave her to think about what you said.
让她自己考虑你说的话吧。