nonpoint source pollution的用法和樣例：
例句
- Soil erosion and non-point source pollution are two serious environmental issues.
土壤侵蝕與非點(diǎn)源污染是兩大重要的環(huán)境問(wèn)題。 - According to the investigation, the main causes of agricultural nonpoint source pollution have been analysed.
土壤侵蝕引起的農業(yè)非點(diǎn)源污染是造成水體污染的主要污染源。
