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日本是世界上经济发达的国家之一。据1986年的一项调查,现在日本一对夫妇的平均生育率是1.8个孩子,家庭平均人口为3.4人。独生子女在不断增加,突出地反映在城市里出现了许多由夫妇俩带一个孩子组成的“核心家庭”。
Japan is one of the economically developed countries in the world. According to a 1986 survey, the average fertility rate of a Japanese couple now is 1.8 children and the average family size is 3.4. The one-child increase, highlighting the emergence of many “core families” of couples with one child in the city.