体系 (tǐ xì): ระบบ

This education system needs reform to adapt to the needs of the new era.

The legal system is the foundation for a country's stability and development.

The company established a comprehensive management system, improving work efficiency.

We need to grasp this theoretical system as a whole, rather than focusing only on details.

China's transportation system is becoming more and more developed, making travel more convenient for people.