There are multiple definitions - click on the translation that matches your context.

(尤指非法入境者的)收容所

名词

full

detention centre

noun

Definitions of detention centre

English

a place where people who have entered a country illegally are kept until the authorities decide whether or not they can stay

Asylum seekers are continuing protests at Manus Island detention centre.

English

a place where young people are kept instead of being sent to prison (also: a remand centre)

He was sent to a young offenders' detention centre.