要求与要点：下格拳要借助外旋的反弹力。
Points to Remember: have the low block within the rebounding of outward rotation.
图5-3-13①②（Fig.5-3-13①②）
图5-3-14（Fig.5-3-14）
4.退步挂削 Vertical chopping palm with retreat step
身体右转，右腿后撤成马步；左掌向前下抡挂，右拳收于腰间（图5-3-14）。
Turn the body to the right, and treat the right leg to form horse riding stance.And then chop left palm vertically within right fist retaking at waist（Fig.5-3-14）.
