/vɑləntɛri kənˈfɛʃən/ – Pharse
Definition: Thú nhận tự nguyện
A more thorough explanation: a confession (=a statement by a defendant that he or she has committed a particular crime) made by a person accused of a crime, given without that person being threatened or paid
Example: We have to draw a distinction between a voluntary confession and one made under pressure.