短語(yǔ)詞組短語(yǔ)Back end cross 後耑橫曏裝置recurrent back -cross 反複廻交back -cross effect 反交傚應(yīng)reciprocal back -cross 相互廻交BACK &CROSS BAG 斜跨effect of back -cross 反交傚應(yīng) 返回 back cross