Complex sentence: In June 1997, during the Chinese Championships held in Chengdu, Li broke the Chinese record on 100m in 11.05 s and won the 200m in 22.60 s, setting a new personal best in the process.
Split into simpler sentences: In June 1997, during the Chinese Championships held in Chengdu, Li broke the Chinese record on 100m in 11.05s. She also won the 200m in 22.60s, setting a new personal best in the process.