Complex sentence: The Brazilian economy grew rapidly at a rate of 10% per year during his term, big construction projects undertaken, including the Transamazônica road, the Itaipu dam and Rio-Niterói bridge.
Split into simpler sentences: The Brazilian economy grew rapidly at a rate of 10% per year during his term. Large construction projects were undertaken, including the Transamazônica road, the Itaipu dam and Rio-Niterói bridge.