adjust和adapt有什么区别,比如一道04年专四的完型中“...It's normally takes five

adjust和adapt有什么区别,比如一道04年专四的完型中“...It's normally takes five days to one week for
“...It's normally takes five days to one week for a person to ____to a reversed routine of sleep and wakefuless,sleeping during the day and the working a night...”大家觉得空白处填应该填adjust还是adapt。很纠结查字典这两个英文解释差不多啊，也都有和to的搭配。有木有高手来谈谈这个问题。
可是字典上的英文解释真的差不多啊。也都可以和to 和oneself搭配
adapt to change ur behavior in order to deal more successfully with a new situation
adjust to get used to a new situation by changing the way u behave