"tràng giang đại hải" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "長江大海"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "長江",
        "2": "",
        "3": "大海"
      },
      "expansion": "Sino-Vietnamese word from 長江 and 大海",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 長江 and 大海, literally \"[like a] long river and big ocean\".\nThis saying uses the conservative reading tràng for 長 /长 instead of the usual trường.",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "adjective",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "7": "",
        "8": "",
        "head": "",
        "tr": ""
      },
      "expansion": "tràng giang đại hải",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "tràng giang đại hải",
      "name": "vi-adj"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Vietnamese words with uncreated Han etymology",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "vi",
          "name": "Writing",
          "orig": "vi:Writing",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "overlong"
      ],
      "id": "en-tràng_giang_đại_hải-vi-adj-lM1npy-f",
      "links": [
        [
          "overlong",
          "overlong"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, of a piece of writing) overlong"
      ],
      "raw_tags": [
        "of a piece of writing"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕaːŋ˨˩ zaːŋ˧˧ ʔɗaːj˧˨ʔ haːj˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʈaːŋ˦˩ jaːŋ˧˧ ʔɗaːj˨˩ʔ haːj˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʈaːŋ˨˩ jaːŋ˧˧ ʔɗaːj˨˩˨ haːj˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "tràng giang đại hải"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "長江大海"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "vi",
        "2": "Sino-Vietnamese words"
      },
      "expansion": "",
      "name": "categorize"
    },
    {
      "args": {
        "1": "長江",
        "2": "",
        "3": "大海"
      },
      "expansion": "Sino-Vietnamese word from 長江 and 大海",
      "name": "vi-etym-sino"
    }
  ],
  "etymology_text": "Sino-Vietnamese word from 長江 and 大海, literally \"[like a] long river and big ocean\".\nThis saying uses the conservative reading tràng for 長 /长 instead of the usual trường.",
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "adjective",
        "3": "",
        "4": "",
        "5": "",
        "6": "",
        "7": "",
        "8": "",
        "head": "",
        "tr": ""
      },
      "expansion": "tràng giang đại hải",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "tràng giang đại hải",
      "name": "vi-adj"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Vietnamese words",
        "Sino-Vietnamese words with uncreated Han etymology",
        "Vietnamese adjectives",
        "Vietnamese entries with incorrect language header",
        "Vietnamese idioms",
        "Vietnamese lemmas",
        "Vietnamese terms with IPA pronunciation",
        "vi:Writing"
      ],
      "glosses": [
        "overlong"
      ],
      "links": [
        [
          "overlong",
          "overlong"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, of a piece of writing) overlong"
      ],
      "raw_tags": [
        "of a piece of writing"
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[t͡ɕaːŋ˨˩ zaːŋ˧˧ ʔɗaːj˧˨ʔ haːj˧˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[ʈaːŋ˦˩ jaːŋ˧˧ ʔɗaːj˨˩ʔ haːj˧˨]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[ʈaːŋ˨˩ jaːŋ˧˧ ʔɗaːj˨˩˨ haːj˨˩˦]",
      "note": "Saigon"
    }
  ],
  "word": "tràng giang đại hải"
}