For a turbid and polluted river with highly variable quality, a complex, flexible treatment system should be employed.

对于浊度和污染较重的河水，所以需要一个复杂的，灵活多变的处理体系。

youdao

A fisherman drags nets of oysters from the turbid river water on a breathless summer day.

一个渔民在喘不过气来的夏天从浑浊的河水里拖上了几网牡蛎。

youdao

Beihai sits in a tight-lipped bay on the Gulf of Tonkin, where the rich silt of estuaries is swept and trapped by turbid currents-a paradise for molluscs and those that hunt them.

北海市地处一个狭长的海湾，紧邻北部湾，河口的淤泥被浑浊的水流荡涤、堆积。这是软体动物和猎食者的天堂。

youdao

Sediment-carrying rivers have been diverted, sea level has risen (increasing the volume of water in the lagoon), a deep-water channel has been dredged for shipping, and turbid waters are killing the eel grass that stabilises mud flats.

ECONOMIST: Flood barriers