backing card英语标准发音:backing card英式发音:美式发音:翻译中文后备卡backing card - 基本释义[词典1]衬靶纸backing card - WEB词典Backing Card靠山牌 参考资料: 1.百度翻译:backing card2.有道词典:backing card3.爱词霸:backing card