Complex sentence: Ignoring the shouts to stop, Sachiko mutters about restarting hers first and jumps off, but Miyuki managed to get a hold of her leaving Sachiko's legs dangling from above as the people down below watched in fear.
Split into simpler sentences: Ignoring the shouts to stop, Sachiko mutters that she needs to restart hers first and jumps off. Miyuki manages to get a hold of her, leaving Sachiko's legs dangling from above as the people down below watch in fear.