who invented the technology to use solar energy, silver and a number of other substances can quickly remove the bacteria from the water. Her invention has huge implications in the context of the world are faced with the global clean water crisis.
đang được dịch, vui lòng đợi..
![](//viimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)