In BrE you say to hospital or in hospital when you talk about somebody being there as a patient.在英式英语中，去医院看病或住院诊治用 to hospital 或 in hospital：◆I had to go to hospital.我得去医院看病。◆She spent two weeks in hospital.她住院两周。
In NAmE you need to use the.美式英语要用定冠词 the：◆I had to go to the hospital.我得去医院看病。◆She spent two weeks in the hospital.她住院两周。