you must stay in bed for another two days.这句话中in bed做什么成分?为什么?

问题描述:

you must stay in bed for another two days.这句话中in bed做什么成分?为什么?

you 主语
must stay 谓语
in bed 地点状语 (床上也是一个地点啊)
for another two days 时间状语