其实练的是手指速度:
88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888688888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888其实我一直觉得我肾虚