"mandatory detention" meaning in English

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      "expansion": "mandatory detention (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "The practice of detaining migrants or refugees upon arrival at a destination country."
      ],
      "id": "en-mandatory_detention-en-noun-GpuS9diq",
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          "practice",
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        [
          "detaining",
          "detain"
        ],
        [
          "migrant",
          "migrant"
        ],
        [
          "refugee",
          "refugee"
        ],
        [
          "arrival",
          "arrival"
        ],
        [
          "destination",
          "destination"
        ],
        [
          "country",
          "country"
        ]
      ],
      "raw_glosses": [
        "(law) The practice of detaining migrants or refugees upon arrival at a destination country."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "law"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
          "word": "強制拘留"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "qiángzhì jūliú",
          "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
          "word": "强制拘留"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
          "word": "turvasäilö"
        }
      ],
      "wikipedia": [
        "mandatory detention"
      ]
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  "word": "mandatory detention"
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  "lang_code": "en",
  "pos": "noun",
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        "The practice of detaining migrants or refugees upon arrival at a destination country."
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          "arrival",
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        "(law) The practice of detaining migrants or refugees upon arrival at a destination country."
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        "mandatory detention"
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  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
      "word": "強制拘留"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "qiángzhì jūliú",
      "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
      "word": "强制拘留"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "practice of detaining migrants or refugees upon arrival at a destination country",
      "word": "turvasäilö"
    }
  ],
  "word": "mandatory detention"
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