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In the ban of the internet, What is Ha Jim trying to say about the world of technology in which we're living in?

I visited Mexico once.

Here, once is describing how many times you visited Mexico.
A word that describes a verb is an adverb.

Alexandra stomped out of the classroom with her entourage.

It might surprise you, but with is a preposition.
Prepositions describe something's position.(behind, before, in, during...)
However, prepositions can also describe something's relation to something else, in this case, her entourage's relationship with her stomping.