When the ocean recreational area became too polluted to visit.
当海洋娱乐区污染得不能让人参观时。
Large quantities of water are polluted in that area.
那个地区，大量的水被污染了。
Finally, the recommendations of controlling the polluted river in the study area are proposed.
最后对研究区域的河流污染控制策略提出了建议。
The rivers and lakes in this area are being polluted by this factory.
这个地区的河流和湖泊正在受这家工厂的污染。
Is the air in this area still being polluted by smog?
这个地区的空气还在受烟雾污染吗？
All of the water in the area has been seriously polluted.
这地区所有的水都已受严重污染。
All of the water in the area has been seriously polluted.
这地区所有的水都已受严重污染。
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