The drill has to sink ever deeper to hit water. 都必须更加深钻才能找到水源

83. And in the last 50 years, 21 million wells have been dug.
    过去五十年内 挖了两千一百万口水井
84. The victory over famine has a downside, however.
    然而 战胜饥荒也有其副作用
85. In many parts of the country,
    在国内大部分地区
86. The drill has to sink ever deeper to hit water.
    都必须更加深钻才能找到水源
87. In western india,
    在印度西部
88. 30% of wells have been abandoned.
    百分之三十的水井被废弃
89. The underground aquifers are drying out.
    地下含水层正在枯竭

来自《家园 第二部分 Home Part2》第 86 行