"comment cela" meaning in French

{
  "head_templates": [
    {
      "args": {},
      "expansion": "comment cela",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "What do you mean?"
      ],
      "id": "en-comment_cela-fr-phrase-yKx9zgOx"
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔ.mɑ̃ s(ə).la/"
    }
  ],
  "word": "comment cela"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "comment cela",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French phrases",
        "French terms with IPA pronunciation"
      ],
      "glosses": [
        "What do you mean?"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɔ.mɑ̃ s(ə).la/"
    }
  ],
  "word": "comment cela"
}