If a knee thrust to the testicles or groin is used in connection with a chin jab, the body will automatically bend forward, leaving a perfect set-up for this particular blow.

• 如果膝盖撞裆与掌跟打击下颌结合使用，对手的身体会自动向前弯曲，成为施展这种打击的极佳姿势。