groundwater contamination的用法和樣例：
例句
- There are many groundwater pollution sites in China, which threatened the safety usage of water resources.
摘要我國存在大量的地下水污染場地，給地下水資源的使用帶來了嚴重威脅。 - Waste containers are covered or kept under roofing to prevent storm water and ground water contamination.
廢料收集箱須有蓋或放在室內以確保不會受雨水或地下水污染。
