This single wanton act probably did the most to undermine the global non-proliferation regime.

这个简单胡乱的作为极大促进了破坏全球非扩散的制度。

youdao

There are many paths to a world free of nuclear weapons. What matters is that all States act now, without delay, to fulfil their disarmament and non-proliferation commitments.

建立无核世界固然有很多路径。但重要的是，所有国家都应迅速行动起来，履行裁军和不扩散承诺。

youdao

The Secretary-General is gravely concerned about the negative impact of this deeply destabilizing act on regional stability as well as the global efforts for nuclear non-proliferation.

CNN: World leaders react to North Korea's nuclear test