/ˈeɪ.dʒən.si lɔː/ – Phrase
Definition: Luật về quan hệ đại diện.
A more thorough explanation: the law governing the relationship where one person (the agent) acts and is authorised to act for another (the principal)
Example: These cases are based on the principle of agency law, under which an employer may be liable for the acts of its agent.