Dr.JackTodisveryinterestedincleaningwater. 1.Soit’snatu...
問題詳情：Dr.JackTodisveryinterestedincleaningwater. 1.Soit’snaturalthatheistodevelopasmallandaffordablesystem(系統)tocleanwastewater.His“LivingMachine”cancleanwastewaterinyourhomeorinyourbusiness....