Guān jìnbì shì jūnduì chángjiàn de chéngfá fāngshì.
Confinement is a common form of punishment in the military.
Tips
usage
关禁闭 (guān jìnbì) is the common verb phrase meaning 'to put in confinement.' 禁闭 is most often associated with military discipline but can also refer to solitary confinement in prisons or even being grounded at home (informal).