![billion gallons造句怎么写]( "billion gallons造句怎么写")
- Theethanolmandateissetatninebilliongallonsfor2008andisscheduledtoriseto36billiongallonsayearby2022.Weuseabout410billiongallonsperdayforthenationasawhole.TheUnitedStatesusedapproximately270billiongallonsofwaterperdayin1960.WaterSenseprogramhelpedconsu...
- 25540
中文谷