{
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  "dek": "正值第17届联合国生物多样性峰会召开之际，我们来谈谈法属圭亚那地区的一种珍惜的海生动物棱皮龟，棱皮龟是现存最大的海龟，体长可达2米以上，体重可超600~800公斤；其背甲没有硬质鳞片，而是覆盖着柔软、富有弹性且带有七条纵向脊棱的皮革。位于法属圭亚那西部的海滩是棱皮龟的主要观赏地区，这里也是当地卡利纳（Kalina）印第安文化的重要发源地。不过，据当地的环保组织介绍，最近二十多年来，这里的棱皮龟的数量直线下跌，减少了98%。而其中原因，与中国的消费者有着直接的关联。",
  "desk": "politics",
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      "item_id": "item-c848c2b6fecb4b9787ee14cb",
      "published_at": "2026-10-20T15:44:56Z",
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      "source_name": "RFI",
      "title": "法属圭亚那的棱皮龟与中国人的补品花胶有何关联？",
      "url": "https://www.rfi.fr/cn/%E4%B8%93%E6%A0%8F%E6%A3%80%E7%B4%A2/%E7%8E%AF%E4%BF%9D%E5%A4%A9%E5%9C%B0/20261020-%E6%B3%95%E5%B1%9E%E5%9C%AD%E4%BA%9A%E9%82%A3%E7%9A%84%E6%A3%B1%E7%9A%AE%E9%BE%9F%E4%B8%8E%E4%B8%AD%E5%9B%BD%E4%BA%BA%E7%9A%84%E8%A1%A5%E5%93%81%E5%8C%96%E7%9A%8E%E6%9C%89%E4%BD%95%E5%85%B3%E7%B3%BB",
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  "evidence_strength": "single-source",
  "headline": "法属圭亚那的棱皮龟与中国人的补品花胶有何关联？",
  "lead": false,
  "lead_reason": "Current single-source metadata is retained but not promoted as a lead.",
  "limitations": [
    "Palimpsest retained only feed title, canonical link, time, and a bounded plain-text excerpt; it did not fetch the article body.",
    "The evidence-strength label describes source structure, not truth, intent, impact, or causation.",
    "Declared instrument links are topical pointers until a separate scan or economic observation is joined by time and method.",
    "Title-similarity clustering can miss differently worded or cross-language accounts and can join closely worded updates.",
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  "updated_at": "2026-10-20T15:44:56Z",
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