要求与要点：弹腿要快弹快收，高不过膝。
Points to Remember: retake and kick quickly when having the spring kick, the height is lower than knee.
图5-3-24①②（Fig.5-3-24①②）
图5-3-25①②（Fig.5-3-25①②）
15.反弹上下格拳 High and low block on the left side
(1)左脚前落，左手握拳，大臂上抬高与肩平，小臂外旋格挡，右拳变掌置于左肘关节内侧（图5-3-25①）。
Touch down the left leg on ground, and hold the left fist with the upper arm up to shoulder level, the lower arm block with the outward rotation.Change the right palm to fist and put it on the inside of left elbow（Fig.5-3-25①）.