If you find yourself alive, but you're in the vicinity of a nuclear weapon, you have -- that's gone off -- you have 10 to 20 minutes, depending on the size and exactly where it went off, to get out of the way before a lethal amount of radiation comes straight down from the mushroom cloud that goes up.
如果你发现自己还活着，但是 你处在一个核武器爆炸中心的附近 你有－在爆炸发生之后－ 你有10到20分钟的逃生时间 具体时间取决于爆炸规模以及爆炸地点 在升起的蘑菇云所带来的 致命的强辐射到来之前 逃离那个区域