题目内容：

in three days与in three-day time有什么区别

优质解答

In Three Days： 三日之内
They said they would send me the schedule in three days.
他们说,他们将在三天内把时间安排发给我.
in three days' time： 三天后
They are going to Beijing in three days' time.
他们打算三天后去北京.