"бесплатный сыр бывает только в мышеловке" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "free cheese happens only in a mouse-trap"
      },
      "expansion": "“free cheese happens only in a mouse-trap”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "free cheese happens only in a mouse-trap"
      },
      "expansion": "Literally, “free cheese happens only in a mouse-trap”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “free cheese happens only in a mouse-trap”.",
  "forms": [
    {
      "form": "беспла́тный сыр быва́ет то́лько в мышело́вке",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "besplátnyj syr byvájet tólʹko v myšelóvke",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "proverb",
        "head": "беспла́тный сыр быва́ет то́лько в мышело́вке"
      },
      "expansion": "беспла́тный сыр быва́ет то́лько в мышело́вке • (besplátnyj syr byvájet tólʹko v myšelóvke)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "proverb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian proverbs",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "there's no such thing as a free lunch; you don't get something for nothing"
      ],
      "id": "en-бесплатный_сыр_бывает_только_в_мышеловке-ru-proverb-kKSkICSm",
      "links": [
        [
          "there's no such thing as a free lunch",
          "there's no such thing as a free lunch"
        ],
        [
          "you don't get something for nothing",
          "you don't get something for nothing"
        ]
      ],
      "related": [
        {
          "word": "Бесплатных завтраков не бывает"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲɪˈspɫatnɨj sɨr bɨˈva(j)ɪt ˈtolʲkə v‿mɨʂɨˈɫofkʲe]"
    }
  ],
  "word": "бесплатный сыр бывает только в мышеловке"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "free cheese happens only in a mouse-trap"
      },
      "expansion": "“free cheese happens only in a mouse-trap”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "free cheese happens only in a mouse-trap"
      },
      "expansion": "Literally, “free cheese happens only in a mouse-trap”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “free cheese happens only in a mouse-trap”.",
  "forms": [
    {
      "form": "беспла́тный сыр быва́ет то́лько в мышело́вке",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "besplátnyj syr byvájet tólʹko v myšelóvke",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "proverb",
        "head": "беспла́тный сыр быва́ет то́лько в мышело́вке"
      },
      "expansion": "беспла́тный сыр быва́ет то́лько в мышело́вке • (besplátnyj syr byvájet tólʹko v myšelóvke)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "proverb",
  "related": [
    {
      "word": "Бесплатных завтраков не бывает"
    }
  ],
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian multiword terms",
        "Russian proverbs",
        "Russian terms with IPA pronunciation"
      ],
      "glosses": [
        "there's no such thing as a free lunch; you don't get something for nothing"
      ],
      "links": [
        [
          "there's no such thing as a free lunch",
          "there's no such thing as a free lunch"
        ],
        [
          "you don't get something for nothing",
          "you don't get something for nothing"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[bʲɪˈspɫatnɨj sɨr bɨˈva(j)ɪt ˈtolʲkə v‿mɨʂɨˈɫofkʲe]"
    }
  ],
  "word": "бесплатный сыр бывает только в мышеловке"
}