《核弹》电影英语完整版高清全集百度云在线观看/迅雷下载,未删减版西瓜影音播放器在线播放。　　See how America developed the most destructive invention in human history - the nuclear bomb - how it changed the world and how it continues to loom large in our lives. Hear from historians and those who experienced the dawn of the atomic age.　　- Written by PBS