/ʌn.rɪˈpɔːtɪd kraɪm/ – Phrase
Definition: hành vi phạm tội chưa được ghi vào hồ sơ.
A more thorough explanation: An unreported crime refers to a criminal offense that has occurred but has not been officially documented or reported to law enforcement authorities.
Example: The police were concerned about the high rate of unreported crime in the neighborhood.