legal theory

例句：

1. 1. The legaltheory of property rights is a fundamental concept in the law.
   财产权的法律理论是法律中的一个基本概念。
2. 2. This legal theory has been widely accepted and applied in various fields.
   这一法律理论已被广泛接受并在各个领域得到应用。
3. 3.The legal theory behind this decision is based on the principle of fairness and justice.
   这一决定背后的法律理论基于公平和正义的原则。