China is the only one among the five nuclear powers to publicly declare no first use of nuclear weapons and no use of nuclear weapons against non-nuclear states.

中国是五个核大国中唯一一个公开宣布不首先使用核武器，不对无核国家使用核武器的国家。

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And the spread of nuclear weapons to more states is also an unacceptable risk to global security — raising the specter of arms RACES from the Middle East to East Asia.

核武器扩散到更多的国家也对全球安全构成了不可接受的威胁——在从中东到东亚各地引起对军备竞赛的担忧。

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And this will set the stage for further cuts, and we will seek to include all nuclear weapons states in this endeavor,"

VOA: standard.2009.04.08

But the United States and many other western nations believe Iran's real aim is to develop nuclear weapons.

VOA: standard.2009.09.25

The United States and its allies say Tehran is trying to acquire nuclear weapons.

VOA: standard.2010.07.28

And the nuclear weapons states pledge that at some future point, they will give up their nuclear arsenals.

NPR: Non-Proliferation in the 21st Century

Allowing enrichment would leave Iran's nuclear capability intact and create a dangerous precedent for other aspirant nuclear weapons states.

ECONOMIST: Iran and nuclear weapons

The treaty recognizes them as the only legal nuclear weapons states.

NPR: Non-Proliferation in the 21st Century