translation.en: And it's no surprise that people died, because you don't know how much of this gas each person is going to inhale, what position they're going to fall in when they become unconscious and so on.
translation.zh: 所以也不奇怪人们会死 因为你不知道每个人 会吸入多少气体， 他们将以怎样的姿势昏倒 当他们变得无意识等等