handheld shot of female athlete doing sit-ups while leaning on fitness ball at gym - 徒手訓練 個影片檔及 b 捲影像00:09
handheld shot of young female athlete exercising while sitting at health club - 徒手訓練 個影片檔及 b 捲影像00:12
handheld shot of female athlete stretching body while doing sit-ups on exercise mat - 徒手訓練 個影片檔及 b 捲影像00:05
handheld shot of female athlete with medicine ball doing sit-ups on exercise mat at gym - 徒手訓練 個影片檔及 b 捲影像00:07
handheld shot of female athlete stretching body while doing sit-ups on exercise mat at gym - 徒手訓練 個影片檔及 b 捲影像00:06
medium shot young woman with arms crossed over chest doing sit-ups on exercise ball/ santa fe, new mexico - 徒手訓練 個影片檔及 b 捲影像00:09
medium shot young woman with arms crossed over chest doing sit-ups on exercise ball/ santa fe, new mexico - 徒手訓練 個影片檔及 b 捲影像00:15
