"2000年問題" meaning in Chinese

{
  "forms": [
    {
      "form": "2000年问题",
      "raw_tags": [
        "Simplified Chinese"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "2000年問題",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Chinese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "year 2000 problem"
      ],
      "id": "en-2000年問題-zh-noun-biMRvECF",
      "links": [
        [
          "year 2000 problem",
          "year 2000 problem"
        ]
      ],
      "raw_glosses": [
        "(historical) year 2000 problem"
      ],
      "synonyms": [
        {
          "word": "Y2K問題"
        }
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Mandarin",
        "Pinyin"
      ],
      "zh-pron": "èrqiānnián wèntí"
    },
    {
      "tags": [
        "Mandarin",
        "bopomofo"
      ],
      "zh-pron": "ㄦˋ ㄑㄧㄢ ㄋㄧㄢˊ ㄨㄣˋ ㄊㄧˊ"
    },
    {
      "tags": [
        "Hanyu-Pinyin",
        "Mandarin",
        "standard"
      ],
      "zh-pron": "èrqiānnián wèntí"
    },
    {
      "tags": [
        "Mandarin",
        "bopomofo",
        "standard"
      ],
      "zh-pron": "ㄦˋ ㄑㄧㄢ ㄋㄧㄢˊ ㄨㄣˋ ㄊㄧˊ"
    },
    {
      "tags": [
        "Mandarin",
        "Tongyong-Pinyin",
        "standard"
      ],
      "zh-pron": "èrciannián wùntí"
    },
    {
      "tags": [
        "Mandarin",
        "Wade-Giles",
        "standard"
      ],
      "zh-pron": "êrh⁴-chʻien¹-nien² wên⁴-tʻi²"
    },
    {
      "tags": [
        "Mandarin",
        "Yale",
        "standard"
      ],
      "zh-pron": "èr-chyān-nyán wèn-tí"
    },
    {
      "tags": [
        "Gwoyeu-Romatsyh",
        "Mandarin",
        "standard"
      ],
      "zh-pron": "ellchiannian wenntyi"
    },
    {
      "tags": [
        "Mandarin",
        "Palladius",
        "standard"
      ],
      "zh-pron": "эрцяньнянь вэньти"
    },
    {
      "tags": [
        "Mandarin",
        "Palladius",
        "standard"
      ],
      "zh-pron": "ercjanʹnjanʹ vɛnʹti"
    },
    {
      "ipa": "/ˀɤɻ⁵¹ t͡ɕʰi̯ɛn⁵⁵ ni̯ɛn³⁵ wən⁵¹ tʰi³⁵/",
      "tags": [
        "Mandarin",
        "Sinological-IPA",
        "standard"
      ]
    },
    {
      "ipa": "/ˀɤɻ⁵¹ t͡ɕʰi̯ɛn⁵⁵ ni̯ɛn³⁵ wən⁵¹ tʰi³⁵/"
    }
  ],
  "word": "2000年問題"
}

{
  "forms": [
    {
      "form": "2000年问题",
      "raw_tags": [
        "Simplified Chinese"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "zh",
        "2": "noun"
      },
      "expansion": "2000年問題",
      "name": "head"
    }
  ],
  "lang": "Chinese",
  "lang_code": "zh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Chinese entries with incorrect language header",
        "Chinese lemmas",
        "Chinese nouns",
        "Chinese terms spelled with 問",
        "Chinese terms spelled with 年",
        "Chinese terms spelled with 題",
        "Chinese terms with IPA pronunciation",
        "Chinese terms with historical senses",
        "Mandarin lemmas",
        "Mandarin nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "year 2000 problem"
      ],
      "links": [
        [
          "year 2000 problem",
          "year 2000 problem"
        ]
      ],
      "raw_glosses": [
        "(historical) year 2000 problem"
      ],
      "synonyms": [
        {
          "word": "Y2K問題"
        }
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Mandarin",
        "Pinyin"
      ],
      "zh-pron": "èrqiānnián wèntí"
    },
    {
      "tags": [
        "Mandarin",
        "bopomofo"
      ],
      "zh-pron": "ㄦˋ ㄑㄧㄢ ㄋㄧㄢˊ ㄨㄣˋ ㄊㄧˊ"
    },
    {
      "tags": [
        "Hanyu-Pinyin",
        "Mandarin",
        "standard"
      ],
      "zh-pron": "èrqiānnián wèntí"
    },
    {
      "tags": [
        "Mandarin",
        "bopomofo",
        "standard"
      ],
      "zh-pron": "ㄦˋ ㄑㄧㄢ ㄋㄧㄢˊ ㄨㄣˋ ㄊㄧˊ"
    },
    {
      "tags": [
        "Mandarin",
        "Tongyong-Pinyin",
        "standard"
      ],
      "zh-pron": "èrciannián wùntí"
    },
    {
      "tags": [
        "Mandarin",
        "Wade-Giles",
        "standard"
      ],
      "zh-pron": "êrh⁴-chʻien¹-nien² wên⁴-tʻi²"
    },
    {
      "tags": [
        "Mandarin",
        "Yale",
        "standard"
      ],
      "zh-pron": "èr-chyān-nyán wèn-tí"
    },
    {
      "tags": [
        "Gwoyeu-Romatsyh",
        "Mandarin",
        "standard"
      ],
      "zh-pron": "ellchiannian wenntyi"
    },
    {
      "tags": [
        "Mandarin",
        "Palladius",
        "standard"
      ],
      "zh-pron": "эрцяньнянь вэньти"
    },
    {
      "tags": [
        "Mandarin",
        "Palladius",
        "standard"
      ],
      "zh-pron": "ercjanʹnjanʹ vɛnʹti"
    },
    {
      "ipa": "/ˀɤɻ⁵¹ t͡ɕʰi̯ɛn⁵⁵ ni̯ɛn³⁵ wən⁵¹ tʰi³⁵/",
      "tags": [
        "Mandarin",
        "Sinological-IPA",
        "standard"
      ]
    },
    {
      "ipa": "/ˀɤɻ⁵¹ t͡ɕʰi̯ɛn⁵⁵ ni̯ɛn³⁵ wən⁵¹ tʰi³⁵/"
    }
  ],
  "word": "2000年問題"
}