"сред" meaning in 保加利亚语

{
  "categories": [
    {
      "kind": "other",
      "name": "保加利亞語介詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "保加利亞語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有4個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "派生自原始斯拉夫語的保加利亞語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "源自原始斯拉夫語的保加利亞語繼承詞",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "繼承自原始斯拉夫語 *serdъ；與烏克蘭語 се́ред (séred)同源。对比原始斯拉夫語 *serdà (“中間”)。",
  "forms": [
    {
      "form": "sred",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "保加利亚语",
  "lang_code": "bg",
  "pos": "prep",
  "senses": [
    {
      "glosses": [
        "在……之中"
      ],
      "id": "zh-сред-bg-prep-Qk~hYCkP"
    }
  ],
  "word": "сред"
}

{
  "categories": [
    "保加利亞語介詞",
    "保加利亞語詞元",
    "有4個詞條的頁面",
    "派生自原始斯拉夫語的保加利亞語詞",
    "源自原始斯拉夫語的保加利亞語繼承詞"
  ],
  "etymology_text": "繼承自原始斯拉夫語 *serdъ；與烏克蘭語 се́ред (séred)同源。对比原始斯拉夫語 *serdà (“中間”)。",
  "forms": [
    {
      "form": "sred",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "保加利亚语",
  "lang_code": "bg",
  "pos": "prep",
  "senses": [
    {
      "glosses": [
        "在……之中"
      ]
    }
  ],
  "word": "сред"
}