Chinese scientists say they believed that North Korea's nuclear test site has been so badly damaged by atomic explosions that it's no longer usable.

中国科学家称其认为朝鲜核试验基地受原子弹爆炸影响已被严重损毁，再也无法运行。

Upon viewing the first atomic explosion, Oppenheimer felt a cold satisfaction that soon turned to melancholy, as he grappled with the implications of his work.

看到第一次原子爆炸后，奥本海默感到一种冰冷的满足感， 但很快就变成了忧郁，因为他正在努力思考他的工作的含义。