短語(yǔ)詞組短語(yǔ)family background difference difference 家庭差異target -background temperature difference 目標(biāo)背景溫差cultural background difference 文化背景差異knowledge background difference 知識(shí)背景差異Local background difference 局域背景差分the background difference method 背景差分法Economic Background Difference 經(jīng)濟(jì)背景差異 返回 background difference