◆to run dry
river +流干；干涸
In the end the Volga's waters will run dry.最终, 伏尔加河的水会干涸。
oil well +枯竭；干枯
To harvest oil and gas profitably from the North Sea, it must focus on the exploitation of small reserves as the big wells run dry.随着大型油井的枯竭, 要想从北海的石油和天然气开采中赢利, 必须着力于开采小储量的油井。