求翻译：3．已完成三通一平工程、污水处理主体工程，累计投资238万元。是什么意思？

3，已完成三通-平工程，污水处理主体工程，累计投资238万元。

Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, sysadmin@babylon.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

3.已完成三通一平工程、污水处理主体工程，累计投资238万元。

3．已完成三通一平工程、污水处理主体工程，累计投资238万元。

3. Complete subject of three connections and one leveling works, sewage treatment works, invested $ 2.38 million.