“拘留中心”常见的英文表达是 detention center 或 detention centre(英式英语中常用“centre” ,美式英语中常用“center” )。
例句:
The refugees were held in a detention center.(这些难民被关押在一个拘留中心。)
A report revealed the harsh conditions inside the detention centre.(一份报告揭示了该拘留中心内部的恶劣条件 。)