求翻译：就挖沙作业来说，很多的企业在发展的过程中将工业垃圾排放在了湖泊，河流，造成很严重的环境污染，不仅大大影响了我们赖以生存环境，而且给挖沙工作带来了一定的难度。是什么意思？

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The dredging operation, a lot of enterprises in the process of development, industrial waste emissions in the lakes, rivers, have a serious environmental pollution has not only greatly impact our survival environment, but also to dredging work has brought a certain degree of difficulty.

On digs the sand work, very many enterprises in the development process the industry trash emissions in the lake, the rivers, have created the very serious environmental pollution, not only has affected our livelihood environment greatly, moreover for dug the sand work to bring certain difficulty.

Dredging operations, many enterprises in the development process of industrial waste discharged in the Lakes, rivers, causing serious environmental pollution, not only greatly affecting our living environment, and brought a certain degree of difficulty to the dredging work.

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