Excess water at the surface is siphoned down to replenish ground water, which is then pumped backupfor use as necessary.
地表多余的水被虹吸下去，用于补充地下水，然后地下水被重新抽上来用于必要的用途。
3
Three police vans had gouged tracks in the lawn, and Aziraphale made Crowley backupfor the first of the ambulances, but then the Bentley swished into the night.