Note that the expressions \A and \z indicate the start and end of a segment. Everything between \A and \z is the segment's content.
If you aren't looking for a way to deal with whole segments that don't need translation, but instead for a procedure to deal with words (in segments) that don't need translation, please look here: https://cafetran.freshdesk.com/support/discussions/topics/6000056787
alwayslockyourbike
Movie: https://youtu.be/OJ3EnU1CXWo
Steps: