custody的意思就是"拘留,拘押,羁押" the state of being in prison, especially while waiting for trial
After the riot, 32 people were taken into police custody.
那场暴乱后,有 32 人被警方拘留.
He was remanded in custody, charged with the murder of a policeman.
他被控谋杀一名警察,正在羁押候审.
in critical condition的这个condition指的是"健康状况"the state of sb's healty or how hit they are."
in critical condition的意思就是,生命垂危,情况危急.
The motorcyclist was in a critical condition in hospital last night. 那位摩托车手昨晚在医院生命垂危。