basic principle

例句：

1. 1. The basic principle of democracy is the rule of the people.
   民主的基本原则是人民的统治。
2. 2. The company's basic principle is to provide high-quality products at reasonable prices.
   该公司的基本原则是以合理的价格提供高质量的产品。
3. 3. The teacher emphasized the importance of following the basic principle of fairness and justice in education.
   老师强调了在教育中遵循公平和正义的基本原则的重要性。