cross-stepWiktionary 原文构词拆分cross-前缀Shaped like a cross or X; crossing lines. · Perpendicular in angle; transverse.+step词根/词干词源说明From cross- + step.释义（英文）名词 NounIn dancing, gymnastics: a step in which one foot is crossed over another; or the action of taking such a step or steps.In surfing: a step or series of steps used to maintain trim on a longboard in which one foot is crossed over another