jumping The act of propelling oneself into the air from a surface, usually through the flexion and sudden muscular extension of the legs.另请参见floatingflyinghoppingpouncingmidair The following tags are aliased to this tag: jump (learn more). 将自己从表面推向空中的行为，通常通过腿部的弯曲和突然的肌肉伸展。