in the hospital 与 at the hospital 的区别?

in the hospital 与 at the hospital 的区别? at hospital ,at the hospital ,in hospital,in the hospital的区别 in the hospital 和at the hospital ,in hospital,at hospital的区别 in the hospital与at the hospital 区别 区别in the hospital 和at hospital in the hospital与in hospital的区别 in hospital与in the hospital的区别 in bed 与 in the bed的区别!in hospital与in the hospital "in the hospital"和"at the hospital"的区别和用法 in hospital 和 at hospital 的区别 in the hospital 和 in hospital的区别 in hospital和in the hospital的区别