stay in bed 和stay in the bed 有什么不同?

stay in bed 和stay in the bed 有什么不同? During my stay in bed和during i stay in bed有什么不同 哪个对 stay in bed 和stay in the bed stay in bed 和stay in the bed的区别 stay in the bed和stay in bed 用法和例子 must stay in bed stay in bed stay in the bed中文意思 stay.in.bed和drink.more. he must stay in bed 请问 in后面加the 有什么区别吗? he must stay in bed. you must stay in bed