You can try the folllowing exercises, thy are all without using the 啞鈴 only your body weight.
Chest: dips, push-ups (hands are closer), push-ups (all various forms)
Bicep: pull-up
Tricep: dips,
Abs: crunches (all various forms), sit-ups, leg pull-in
Most people will use weight to train their bodies, it is much easier to gain the muscle.