Shift from al to Cu interconnects in Ultra-Large Scale Integrate (ULSI) is important for semiconductor industry.

利用铜代替铝作为超大规模集成电路的互连接线，代表了半导体工业的重要转变。

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"I don't think it is surprising that al-Qaida would want to shift attention away from the president's historic efforts, and continued efforts, to reach out and have an open dialogue with the Muslim world,"

VOA: standard.2009.06.03

Our correspondent says the US president is likely to discuss the size of the force that remains, and whether they are there to fight the Taliban or shift their primary focus to tackling al-Qaeda.

BBC: British soldier killed by Afghan army gunman in Helmand

The BBC's Quentin Sommerville in Kabul says the US president is likely to discuss the size of the force that remains, and whether they are there to fight the Taliban or shift their primary focus to tackling al-Qaeda.

BBC: Afghan 'zero option' raised as Karzai set for Obama

Moaz al-Khatib, the Syrian opposition leader, appeared underwhelmed by the US shift.

BBC: Frustration forces Western shift on Syria