back pack英语标准发音:back pack英式发音:美式发音:翻译中文背包back pack - 基本释义[词典1]背负, 背包式灭火器;后背包;大背包back pack - 英英词典NOUN[名词]a bag carried by a strap on your back or shoulder背带背上或肩上背带的包backpackknapsackpacksackrucksackhaversackback pack - WEB词典back pack背包式灭火器背架背包背负的五加仑灭火器back-pack camera背负式电视摄像机背负式照相机back-pack背伞背负式 参考资料: 1.百度翻译:back pack2.有道词典:back pack3.爱词霸:back pack