They believe that the benefits of the tax cut for corporations should eventually trickle down to the average consumer.他们相信减税给企业带来的利益最终会向下渗透，惠及普通消费者。The water filters downwards through the rock for hundreds of feet.水透过数百英尺的岩石向下渗透。Ground water percolating downwards becomes superheated and then blasts upwards.向下渗透的地下水变得过热，然后向上喷发。