短语词组短语take aback 使吃惊;惊吓;使吓呆all aback 逆风;大吃一惊aback tax 补缴税款aback shaft 支持轴heave aback 顶风浪停船answer aback 顶撞beyond aback 后背宽chop aback 忽然转向book aback 书背taken aback 惊讶 返回 aback