during the next few days和in the next few days 有什么区别

during 表时间段，有持续性
in 表时间点，就是当时的事情，无延续

不过在这个句子里面没什么区别。

during the next few days是指一段时间，要和延续性动词连用。
比如I will be working with him during the next few days
in the next few days和一般将来时连用，指在将来某个时间会完成的动作。
对比He will finish his work in the next few days

during是在……期间的意思，它比in更强调过程
强调在接下来的几天里的过程中*（during the next few days).

during the next few days在接下来的几天“中”
in the next few days在接下来的几天“后”

during the next few days指在这几天里，一般有总括性的作用；而 in the next few days则指在将来的几天里，一般用在将来式。

during the next few days和延续性动词连用
in the next few days不和延续性动词连用