大大 (dà dà): greatly, significantly

This meeting greatly improved our work efficiency.

The new policy greatly improved people's living standards.

Your help greatly reduced my pressure.

The Internet has greatly facilitated our daily lives.

This policy has greatly improved the people's living standards.

The application of new technology has greatly reduced production costs.

His mistake greatly affected the progress of the entire team.

This reform has greatly enhanced the company's competitiveness.