The difficulty of practicing the Navy Six Styles is not low. Even some senior officers at headquarters can only master one or two styles, using these styles to help themselves break through certain limits of human potential.,They looked at the motionless stone target, and the index finger bent at a 90-degree angle, their eyes twitched involuntarily, and they unconsciously withdrew their hands.,"Well, it's been a while since I moved. Stretching my fingers."。