Iy may become possible to set up a nuclear chain reaction .
在芝加哥大学体育馆地下的里废弃的墙式网球场所进行的第一次核连锁反应，已经无可扭转地改变了世界。
The world has been changed irrevocably by that first nuclear chain reaction on the deserted squash court underneath the stadium at the University of Chicago .
核连锁反应