translation.en: Then I found out, post exposure, that this plastic bag if I put it into a filthy puddle or a stream filled with coliforms and all sorts of disgusting stuff, that that filthy water will migrate through the wall of the bag by osmosis and end up inside it as pure, potable drinking water.
translation.zh: 后来一看 我发现 如果我把它放到一个脏水坑里 或者含有氯仿的水里 或者各种各种样的脏东西 接着脏水 会通过反渗透进入袋子里 变成纯净的可饮用的水