MostAmericansuseabout50to70gallonsofwatereachdayintheir...
問題詳情：MostAmericansuseabout50to70gallonsofwatereachdayintheirhomes.Itiseasytowastewaterwhenyouarenotthinkingaboutit.Makeanefforttotrackhowmuchwaterusewhenyoubrushyourteeth,shower,cook,doyourdishes,o...