Dr.JackTodisveryinterestedincleaningwater. 1.Soit’snatu...
问题详情：Dr.JackTodisveryinterestedincleaningwater. 1.Soit’snaturalthatheistodevelopasmallandaffordablesystem(系统)tocleanwastewater.His“LivingMachine”cancleanwastewaterinyourhomeorinyourbusiness....