Complex sentence: Many Chinese teens and students were becoming disillusioned with their government, which they felt had abandoned its ideals; furthermore, because of the rapid economic changes, many of them felt that they had no opportunities and no individual freedom.
Split into simpler sentences: Many Chinese teens and students were becoming disillusioned with their government, which they felt had abandoned its ideals. Because of the rapid economic changes, many of them felt that they had no opportunities and no individual freedom.