They can't give me detention for this.
他们不可能因为这事罚我课后留下来。
They have been held in detention since the end of June
他们从6月底以来就一直受到监禁。
The teacher kept the boys in detention after school.
老师将这些男生课后留堂。
He described the detention without trial of political opponents as a cowardly act.
他称未经审判就将政敌关押起来是懦夫之举。
He has clearly not been chastened by his thirteen days in detention
显然，13天拘留并没能让他悔过自新。