/tə faɪl ə kəmˈpleɪnt/ – Phrase
Definition: 1. đưa đơn khiếu nại;
2. kẹp đơn khiếu nại vào hồ sơ.
A more thorough explanation: To file a complaint means to formally submit a written document to a court, administrative agency, or other official body, outlining a grievance or claim against another party. The complaint typically sets forth the legal basis for the claim and the relief sought by the party filing the complaint.
Example: The plaintiff decided to file a complaint against the defendant for breach of contract.