/vɑləntɛri əˈtɛndəns/ – Phrase
Definition: sự có mặt tự nguyện (tại tòa), việc đi thăm tự nguyện (trại cải tạo).
A more throughout explanation: Voluntary attendance refers to a situation where an individual willingly chooses to be present at a particular event, meeting, or activity without being compelled or forced to do so by any external authority or obligation.
Example: The witness’s voluntary attendance at the deposition was appreciated by the court.