You've demonstrated a keen understanding.

Meaning

You've shown a sharp and insightful grasp of the subject.

Examples

• John: 'I grasped the complex concepts quickly.'
• Alice: '<b>You've demonstrated a keen understanding.</b> That's impressive.'
• John: '<b>You've demonstrated a keen understanding.</b> That's why you're so valuable to the team.'
• Alice: 'I readily understood the technical details of the project.'