把南方的水资源引到水源缺乏的北方to divert water from the south to the north

• 南水北调工程

  project to divert water from the south to the north

• 发扬学术民主，探讨南水北调大计。

  Promote academic democracy and discuss the great plan of diverting water from the south to the north.

• 大力发展南水北调。

  Vigorously develop the diversion of water from the south to the north.