An event with a probability of exactly 0 is considered an impossible event in a finite sample space; it will never happen。
老爱就是要打击下老萨的色心,意思是你以前都没把她睡过, 现在想睡的可能性完全没有。
但后来为了安慰老萨,有意淫地补充说,她不会再找到你这样的人了,她找的概率也是零。