in bed ,in the bed 的区别

in bed ,in the bed 的区别 on the bed on bed in the bed in bed 的区别 be in bed 和be in the bed的区别~ stay in bed 和stay in the bed的区别 on the bed 与in the bed 的区别 in the bed与on the bed ,in bed的区别 in hospital和in the hospital 还有in bed 和in the bed的区别 in bed 与 in the bed的区别!in hospital与in the hospital on bed ,on the bed,in bed ,in the bed有什么区别 in bed /on bed /in the bed /on the bed之间有什么区别?快 in the bed 与 in bed 的区别 in the bed 与 in bed 的区别!要详细说明加the有什么 in bed ,in the bed 有何区别?