/tə ˈtɛstəˌfaɪ əˈpɒn ˈtraɪəl/ – Phrase
Definition: đứng ra làm chứng trước tòa.
A more thorough explanation: “To testify upon trial” refers to the act of providing sworn evidence or testimony in a court of law during a trial. Testifying involves giving a statement or recounting facts relevant to the case under oath, with the purpose of assisting the court in reaching a decision.
Example: The witness was called to the stand to testify upon trial regarding the events that occurred on the night of the crime.