Generally speaking,a university consists of many different departments/institutes. 这里翻译成department也可，因为“学院”就是我们所说的“...系” 当然翻译成institute也没问题。
支持Jamesbwang的答案
一般来说，一所大学有很多的学院构成 In general, a university is sturctured by a few colleges (institutes).
一般来说，一所大学有很多的学院构成 General speaking,many different faculty combined with an university.
A university is generally composed of several colleges.
General speaking, there are many colleges constitute a university.
