Complex sentence: Among other six sports that may produce top multiple medalists, China may have breakthroughs fencing and cycling, while chances are slim in the sport of athletics, canoeing, rowing and equestrian.
Split into simpler sentences: Among other six sports that may produce top multiple medalists, China may have breakthrough in the sport of fencing and cycling. While chances are slim in the sport of athletics, canoeing, rowing and equestrian.