/stɑr ˈwɪtnəs/ – Phrase
Definition: nhân chứng chính.
A more thorough explanation: A “star witness” is a key witness in a legal proceeding whose testimony is considered crucial or highly significant to the case. This term is often used to refer to a witness whose testimony is expected to have a major impact on the outcome of the trial.
Example: The star witness provided crucial testimony that helped secure the conviction of the defendant.