生命的原理

例句：

1. 1. The scientist discovered the principle of gravity.
   科学家发现了万有引力的原理。
2. 2.The teacher explained the concept of cause and effect to the students.
   老师向学生们解释了因果关系的概念。
3. 3. The new law is based on the fundamental principles of democracy.
   新法律基于民主的基本原则。