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池子里满是淤泥和绿色的污水。
The pond was full of mud and green slime.
《牛津词典》
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饮用水、污水和淤泥处理技术和水系统管理。
Potable Water, Wastewater, and Sludge treatment technology and system management;
youdao
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饮用水、污水和淤泥处理技术和水系统管理。
Potable Water, Wastewater, and Sludge treatment technology and system management;
youdao