1.He was kept in detention by the police.

1.他被警察扣留了。

2.He was held in detention from 1991 to 2009.

2.他从1991到2009 被监禁。

3.25."Arrest" means the detention of a ship by judicial process tosecure a maritime claim, but does not include the seizure of a ship inexecution or satisfaction of a judgment.

3.“扣押”系指通过司法程序滞留船舶，以保全海，但不包括执行或满足某项判决中船舶的扣留。