英音听力讲解:白宫称索尼影业遭黑客入侵是国家安全事件

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1.45 air strikes were carried out, the most intensive such attacks since the Americans began using their air power in northern Iraq in August.

carry out执行；进行

The indisputable fact is that computers carry out logical operations.
不容置疑的事实是，电脑执行逻辑操作指令。

2.After a spate of suicides in 2010 Apple published standards designed to protect workers.

a spate of大批的

The bombing was the latest in a spate of terrorist attacks.
这次的爆炸事件是近期一连串恐怖主义袭击中最新的一起。