in bed和in the bed有什么区别?

in bed和in the bed有什么区别? in bed 和in the bed有什么区别? 短语ni bed 和 in the bed 有什么区别 stay in bed 和stay in the bed 有什么不同?可以是stay on bed on bed ,on the bed,in bed ,in the bed有什么区别最好详细一些 in bed /on bed /in the bed /on the bed之间有什么区别?快特别强调on bed, in bed和 in the bed有什么区别?in class和 in the class有什么区别? in bed 和on the bed in the bed 和in bed 有什么区别吗?(so do in the hospital and in hospitai.) in bed 和on the bed有什么区别?在床上看书是read in bed还是read on the bed?如果是read book 是read book in bed还是read book in the bed?什么时候用in bed,什么时候用on the bed? be in bed 和be in the bed的区别~ stay in bed 和stay in the bed的区别 stay in bed 和stay in the bed in bed ,in the bed 有何区别? in bed ,in the bed 的区别 请问in the bed和 on the bed 有什么区别,还有其它类似的词组吗? in the bed/in bed/on the bed的区别 During my stay in bed和during i stay in bed有什么不同 哪个对