n. 地下水
1. Groundwater is an important source of drinking water for many communities.
地下水是许多社区的重要饮用水来源。
2. Farmers often rely on groundwater for irrigation during dry seasons.
农民在干旱季节通常依赖地下水进行灌溉。
3. Pollution can easily contaminate groundwater, making it unsafe to drink.
污染物很容易污染地下水，使其变得不安全饮用。