polluted
单词辨析：
指因含有其他物质而不纯或不洁的，往往指含有劣质的物质。
impure silver
不纯的银
The salt you bought from the market was slightly impure.
你从市场上买回的盐含有少量杂质。
He was a drug dealer who sold impure heroin.
他是个贩卖不纯海洛因的毒贩。
指水、食物等被有害物质污染了的。
Data from the contaminated specimen cannot be used.
根据被污染的样品得到的数据是不能使用的。
People in the area could fall ill after drinking contaminated water.
那一地区的居民可能会在饮用受到污染的水后患病。
Her infection was traced to contaminated food.
她的感染被查出是由受到污染的食物所致。
指水、空气、土壤等被有害物质污染而不适合使用的。
Experts are investigating why the lake is seriously polluted.
专家正在调查为什么这个湖会受到严重污染。
The inhabitants are being warned to avoid bathing in the polluted river.
市民被提醒不要在那条遭污染的河里游泳。
The aim of the new project is to clean up polluted land.
新项目的目标是整治受污染的土地。
相关例句：
The police have warned the city's inhabitants not to bathe in the polluted river.
警方已经告诫该市居民不要在这条被污染的河里游泳。
The river has been polluted by chemicals.
这条河被化学物质污染了。
The polluted waste is often dumped, making the surrounding land infertile.
被污染的废物经常被随意倒掉，周边土地因此而变得很贫瘠。
Some of the rivers are polluted.
有些河流被污染了。
Gases such as carbon monoxide emited by factories and cars have polluted the atmosphere badly.
工厂和汽车发出的一氧化碳一类气体严重污染了大气。
This lake is badly polluted.
这个湖受到了严重的污染。