Complex sentence: In fact, her father was initially against the idea she was then training with a provincial swimming team and earning a monthly salary of RMB500, and there was a good chance she might do well enough to join the Chinese national team.
Split into simpler sentences: In fact, her father was initially against the idea as she was then training with a provincial swimming team and earning a monthly salary of RMB 500. And there was a good chance she might do well enough to join the Chinese national team.