求翻译：务必做到先节水后调水，先治污后通水，先环保后用水，“南水北调”工程的规划和实施要建立在节水、治污和生态环境保护的基础上。是什么意思？

Be sure to do so after the first water-saving water, pollution of water after, after the first environmental protection water, "North" project planning and implementation based on water conservation, pollution control and ecological environment protection on the basis of.

正在翻译，请等待...

Achieves after by all means must saves water first adjusts the water, after the anti-pollution lets water through first, after first the environmental protection the water used, “the northward rerouting of southern river” the project plan and the implementation must establish in saving water, the an

Be sure to do so after the first water-saving water, pollution of water after, after the first environmental protection water, "North" project planning and implementation based on water conservation, pollution control and ecological environment protection on the basis of.

正在翻译，请等待...