世界最快有效的伸展運動3.0：腦科學＋筋膜放鬆，僵硬的身體馬上就能變柔軟 (二手書交易資訊)

[{"sale_price":220,"disc":"58","prod_count":1,"sale_month":"202010","avg_price":220,"avg_disc":58},{"sale_price":262,"disc":"69","prod_count":1,"sale_month":"202011","avg_price":262,"avg_disc":69},{"sale_price":476,"disc":126,"prod_count":2,"sale_month":"202012","avg_price":238,"avg_disc":63},{"sale_price":460,"disc":122,"prod_count":2,"sale_month":"202101","avg_price":230,"avg_disc":61},{"sale_price":390,"disc":103,"prod_count":2,"sale_month":"202102","avg_price":195,"avg_disc":52}]