soil pollutant的用法和樣例：
例句
- Scientists say the trees can also improve water quality around farms by removing pollutants from soil and groundwater.
科學(xué)家說(shuō)樹(shù)木也可以通過(guò)出去土壤及地下水中的污染物質(zhì)以改善農田附近的水質(zhì)。 - The strategy specifies the maximum concentration of a pollutant which is allowed to be emitted.
這個(gè)策略確定了一種允許排放的污染物質(zhì)的最高濃度。
