average number of children per marriage
詞語: average number of children per marriage
解釋: 每一起婚姻的平均子女數
詞典: 商務專業英漢詞典
average number of children per marriage 相關解釋
每一起婚姻的平均子女數 average number of children per marriage
每一起婚姻的平均子女數 average number of children per marriage