{
  "title": "外语解说比中文长，怎样核对多语言节目时间轴",
  "evidence_type": "synthetic-not-field-measurement",
  "date": "2026-10-23",
  "required_deliverable": "逐语言片段长度、字幕区间及切换恢复位置对照表",
  "fields": [
    "language",
    "duration_s",
    "subtitle_end_s",
    "anchor_id",
    "anchor_s",
    "switch_from",
    "expected_target_s"
  ],
  "sample_rows": [
    [
      "zh",
      60,
      59,
      "model",
      20,
      "",
      20
    ],
    [
      "en",
      78,
      80,
      "model",
      28,
      "zh:model",
      28
    ]
  ],
  "unmeasured": "已本地检查合成字幕区间越界；未分析真实语言音频、未做翻译审核或联动播放。"
}