生病住院用in the hospital,例如:She spent two weeks in the hospital. 她生病住院两周了。
去医院探病用at the hospital,例如: I visited a friend at the hospital.我去医院探望朋友了。
在医院工作用at the hospital,例如:Jack works as a doctor at the hospital. 杰克在医院工作,他是一名医生。
去医院探病用at the hospital,例如: I visited a friend at the hospital.我去医院探望朋友了。
在医院工作用at the hospital,例如:Jack works as a doctor at the hospital. 杰克在医院工作,他是一名医生。