Complex sentence: Lourenço was picked for the Portuguese U- 21 squads at two UEFA European Under-21 Football Championships, 2004 and 2006; additionally, he represented the nation at the 2004 Summer Olympics.
Split into simpler sentences: Lourenço was picked for the Portuguese under-21 squads at two UEFA European Championships, 2004 and 2006. Additionally, he represented the nation at the 2004 Summer Olympics.