As a non-native speaker of english, I often struggle with always finding new, well-sounding, non-repetitive descriptions for the same thing and I also, to be honest, find it a waste of time of always having to do something different. For example:
Section 1 describes the X while section 2 is about the Y. The Z is explained in section 3 and section 4 refers to A. The next section is about B...
Is it ok to just copy the formulation of someone else (of course my X,Y,Z,... are completely different) and always use the same thing?