in that是一种固定搭配，其意为“因为”，与for the reason that, because 同义，可用于引导原因状语从句。如：
I'm in a slightly awkward position in that he's not arriving until the 10th. 我的处境有点尴尬，因为他要到10号才来。
Most of them are not in reality engineers, in that the work they do is mostly clerical. 他们中的大多数人实际上都不是工程师，因为他们做的主要是办公室工作。
I am an optimist in that I believe that human beings do not always perversely try to make life worse for themselves. 我是乐天派的人，因为我认为人类并非总是违反常情地力图使自己的生活变差。