Later on the day of the launch, Mr Obama in Prague unveiled a lofty vision of a world free of nuclear weapons.

发射当天的晚些时候，奥巴马在布拉格发表了一个崇高的世界无核化愿景。

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Obama has dedicated himself to a world free of nuclear weapons, but that remains a theoretical target.

奥巴马曾说将致力于创造一个无核化的世界，但是这一构想也仅仅停留在理论阶段。

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Universality is where the vitality of the CWC lies and the foundation of realizing a world free of chemical weapons.

普遍性是公约的生命力所在，也是实现无化武世界的根本。

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He urged other nations to join in an effort to free the world of nuclear weapons.

VOA: special.2009.04.11

The Russian leader also praised U.S.President Barack Obama's recent call for a nuclear-weapons-free world, calling it a "beautiful and right goal."

VOA: standard.2009.12.25

"We are working with our partners to stop the spread of nuclear weapons and to seek a world free of nuclear weapons.

VOA: standard.2010.02.06

Analysts expect him to try to examine, with Israeli leaders, how tentative progress might be made on creating a nuclear weapons free Middle East.

BBC: NEWS | Middle East | Spotlight on Israel's nuclear facilities

Barack Obama's vision of a nuclear-weapons-free world into a policy prescription known as the Nuclear Posture Review.

CENTERFORSECURITYPOLICY: Disarmer-in-Chief

On the wider front, Barack Obama endorsed the call last year by four senior former US diplomats (including Henry Kissinger) for the US to aim for a nuclear weapons-free world, as it is supposed to be under the Nuclear Non-Proliferation Treaty.

BBC: Top 10 foreign challenges for Obama