舞台的灯光照耀着他。

The stage lights are ___illuminating him.

这部纪录片对古代文明的见解非常富有启发性。

The documentary offers ___illuminating insights into ancient civilizations.

教授的讲座非常具有启发性，让我们对这个复杂的概念有了清晰的理解。

The professor's lecture was ___illuminating and helped us understand the complex concept clearly.