Breakdown of Un tío del gimnasio me ha pedido mi número.
un
a, an, some
mi
my
del
of the / from the / about the (topic)
el gimnasio
the gym
me
to me / myself (reflexive) / me (direct object)
el número
the number
pedir
to ask for; to order (food or drink)
haber
to have (auxiliary)
el tío
the guy, the bloke (colloquial, Spain)
Elon.io is an online learning platform
We have an entire course teaching Spanish (Spain) grammar and vocabulary.