臉書世代的網路管教：數位小孩的分齡教養指南 (二手書交易資訊)

[{"sale_price":135,"disc":36,"prod_count":3,"sale_month":"202009","avg_price":45,"avg_disc":12},{"sale_price":105,"disc":28,"prod_count":2,"sale_month":"202010","avg_price":52,"avg_disc":14},{"sale_price":70,"disc":"18","prod_count":1,"sale_month":"202012","avg_price":70,"avg_disc":18},{"sale_price":48,"disc":"13","prod_count":1,"sale_month":"202101","avg_price":48,"avg_disc":13},{"sale_price":90,"disc":24,"prod_count":2,"sale_month":"202102","avg_price":45,"avg_disc":12}]