The concept of proprietorship in modern sense originated from the Roman law.
现代意义上的所有权概念起源于罗马法。
The contractual system history of Roman law should not be commentated on and interpreted standing on the idea of the modern contract law, but on its history text.
解读罗马法契约制度史不应站在现代契约法的思想体系上，而应当在历史语境之中进行重述。
Unjust enrichment system began in Roman law. The remodeling and consolidation of civil law and modern civil become an important area of the law of obligation.
不当得利制度起始于罗马法，历近代民法与现代民法的重塑与整合，成为债法领域的一项重要制度。
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