How I use the translation variables to translate all the texts of my app

Hi I have a question, how do I get all the texts in the app translated with the Translation Variables? So far I have only seen how some words or phrases translate without using this type of variables. Is it possible to do this for all text fields?
What I want to translate is a list that has as a series of data taken from a collection.

Where is that variable?
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Maybe I have a different version, I try to inform myself better, sorry
Immagine 2022-09-23 165045