An user Spanish
says…

Participó
Verb
  en
Adposition
  los
Determiner
  juegos
Noun
  olímpicos
Adjective
  de
Adposition
  Barcelona
Proper noun
.

He participated in the Olympic Games in Barcelona.
Words and sentences
New
participó

third-person singular preterite indicative of participar

New
en

  1. in, at, on
  2. in (a time)
  3. in (a language)
  4. used after some verbs and translated by various prepositions in English
  5. in (in various expressions)

New
los

New
juegos

plural of juego

New
olímpicos

New
de

New
Barcelona

  1. Barcelona (the capital city of Catalonia, Spain)
  2. Barcelona (a province of Catalonia, Spain)
  3. the letter B in the Spanish spelling alphabet

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