This is an important step toward a nuclear-free world.

这是向无核世界跨出的重要的一步。

《柯林斯英汉双解大词典》

Can the NPT, which is the centerpiece of the global non-proliferation effort, be righted such that the world can take steps towards Obama's vision of a nuclear-free world?

NPT作为全球核不扩散努力的支柱能够恢复正常，引领世界朝着奥巴马的无核化世界的方向前进吗？

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The vision of a world free from nuclear arms has powerfully stimulated disarmament and arms control negotiations.

无核武世界的愿景有力推动了裁军和军备控制谈判。

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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

A nuclear-free world is also U.S.President Barack Obama's vision - a vision he presented in April during a visit to Prague.

VOA: standard.2010.08.06

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

Mr. President, I support your call to all nations to struggle for a nuclear-free world and we fully support the nuclear strategy of the United States, and we say that all the countries that support the Non-Proliferation Treaty will get the support of nuclear powers and will never be threatened by any nuclear state.

WHITEHOUSE: President Obama��s Bilateral Meeting with President Nazarbayev of Kazakhstan | The White House

Obama's call for a nuclear-free world combined with his aggressive stance towards Israel's purported nuclear arsenal, his bid to disarm the US nuclear arsenal, and his ineffective response to North Korea's nuclear brinksmanship and Iran's nuclear project have served to convince nations from the Persian Gulf to South America to the Pacific Rim that they should begin developing nuclear weapons.

CENTERFORSECURITYPOLICY: Rocking Obama's world

Mayor Kazumi Matsui called for a nuclear-free world at the event at the Hiroshima Peace Memorial Park.

BBC: Japan marks Hiroshima bombing amid anti-nuclear calls