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). 通常通过腿的屈曲和突然的肌肉伸展,将自己从表面驱动到空气中的行为。