骶骨位于脊椎底端，是一个向上的三角形。
The sacrum is the bone that is shaped like an upside-down triangle at the base of the spine.
生命的路是进步的，总是沿着无限的精神三角形的斜面向上走，什么都阻止他不得。
The road of life is progressive, always following the infinite spirit of the triangle cant go upward, what all stop him.
正确的上挥杆姿势是右手上臂内侧应该紧贴右臂腋窝，右臂手肘与伸直的左臂呈一个倒三角形。然而一些球手在上杆的时候右臂向上抬起而并非紧贴身体。
Correct gesture for back swing is that the right upper arm's inside should be close to right armpit, while right elbow shapes an inverse triangle with unbend left arm.
正确的上挥杆姿势是右手上臂内侧应该紧贴右臂腋窝，右臂手肘与伸直的左臂呈一个倒三角形。然而一些球手在上杆的时候右臂向上抬起而并非紧贴身体。
Correct gesture for back swing is that the right upper arm's inside should be close to right armpit, while right elbow shapes an inverse triangle with unbend left arm.
应用推荐