但尽管事情在向好的方向转化，但美国和俄罗斯等两大地区强国仍然掌握着数以千计的核武器，占全世界核武器现有库存的超过90 % 。
But, despite these positive developments, the two largest powers in the region – the United States and Russia – each still possesses thousands of nuclear weapons, accounting for more than 90% of the world’s nuclear inventory.