Many people think of hell as a hot place full of fire. So, a snowball would not have much of a chance there. And that is where this expression comes from: a snowball's chance in hell._______________________It will be a cold day in hell and when hell freezes over also mean the same thing: there is no chance that something will happen.很多人认为地狱是深处火焰,一个温度很高的地方.因此,雪球是不可能在那里存在的.这就是这句话的出处: a snowball's chance in hell._______________________"It will be a cold day in hell"和"when hell freezes over"也表达同样的意思,即"某件事绝对不可能发生".
