scoring_breakdown:[{"source":"word_of_mouth","score":89.19999999999999,"weight":0.25,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍称赞其防霉效果显著,使用半年以上未见发霉痕迹。脚垫设计让砧板悬空通风,台面保持干爽。竹质硬度适中,切菜不伤刀且不易起屑。部分用户反馈尺寸偏小,适合2-3人家庭;导流槽较浅,切多汁食材时偶尔溢出。整体性价比高,京东好评率98%,复购率约15%。","source_count":2}},{"source":"objective","score":94,"weight":0.2,"confidence":0.7,"details":{"dimension":"after_service","rating_avg":4.7,"review_count":28500,"note":"proxy via rating_avg, v3 will parse specs_json"}},{"source":"user_review","score":94,"weight":0.45,"confidence":1,"details":{"rating_avg":4.7,"review_count":28500,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["美食博主@厨房小白日记:双枪这款砧板是我用过最防霉的竹砧板,脚垫设计太聪明了。","生活达人@家居控老李:百元内性价比之王,抗菌效果有检测报告,给家人用放心。"]}}]