To utilize foreign expertise, talent, or the successful experiences of others to effectively develop a project or nation.

学习先进国家的教育理念，对他山之石可以攻玉，对我们的课程改革大有裨益。

To improve one's own character or work by accepting and applying criticism or advice from outside sources.

虽然他的批评很严厉，但对他山之石可以攻玉，我们能借此发现自己的不足并加以改进。