Complex sentence: In 2011, Lizzy was briefly part of the SBS variety show "Running Man" and made her acting debut as the supporting female character on MBC's "All My Love".
Split into simpler sentences: In 2011, Lizzy was briefly a cast member of the SBS variety show, "Running Man". That same year, she made her acting debut as a supporting character on MBC's sitcom, "All My Love".