"iff" meaning in 英語

{
  "categories": [
    {
      "kind": "other",
      "name": "有2個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語連詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "conj",
  "pos_title": "連詞",
  "related": [
    {
      "word": "if"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "有使用例的英語詞",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "英語 數學",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "英語 邏輯學",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "英語簡稱",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "A rectangle is a square iff all four of its sides have the same length.",
          "translation": "当且仅当矩形的四条边长度相等，则矩形是正方形。"
        }
      ],
      "form_of": [
        {
          "word": "if and only if"
        }
      ],
      "glosses": [
        "if and only if (“當且僅當”)之簡寫。"
      ],
      "id": "zh-iff-en-conj-dQj5n60U",
      "tags": [
        "form-of"
      ],
      "topics": [
        "logic",
        "mathematics"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪf ən(d) ˈəʊn.li ɪf/"
    },
    {
      "ipa": "/ɪf ən(d) ˈoʊn.li ɪf/"
    }
  ],
  "word": "iff"
}

{
  "categories": [
    {
      "kind": "other",
      "name": "有2個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語連詞",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "conj",
  "pos_title": "連詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "英語棄用形式",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1565, Thomas Stapleton, A Fortreſſe of the Faith &c., Ihon Laet, the 2. part. 112:",
          "text": "For iff the patient be aſhamed to diſcloſe hiſ wounde to the phyſician which knoweth it not , phyſicke can not helpe him."
        }
      ],
      "form_of": [
        {
          "word": "if"
        }
      ],
      "glosses": [
        "if的已棄用拼寫。"
      ],
      "id": "zh-iff-en-conj-FVNYRWl1",
      "tags": [
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪf ən(d) ˈəʊn.li ɪf/"
    },
    {
      "ipa": "/ɪf ən(d) ˈoʊn.li ɪf/"
    }
  ],
  "word": "iff"
}

{
  "categories": [
    "有2個詞條的頁面",
    "有詞條的頁面",
    "英語詞元",
    "英語連詞"
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "conj",
  "pos_title": "連詞",
  "related": [
    {
      "word": "if"
    }
  ],
  "senses": [
    {
      "categories": [
        "有使用例的英語詞",
        "英語 數學",
        "英語 邏輯學",
        "英語簡稱"
      ],
      "examples": [
        {
          "text": "A rectangle is a square iff all four of its sides have the same length.",
          "translation": "当且仅当矩形的四条边长度相等，则矩形是正方形。"
        }
      ],
      "form_of": [
        {
          "word": "if and only if"
        }
      ],
      "glosses": [
        "if and only if (“當且僅當”)之簡寫。"
      ],
      "tags": [
        "form-of"
      ],
      "topics": [
        "logic",
        "mathematics"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪf ən(d) ˈəʊn.li ɪf/"
    },
    {
      "ipa": "/ɪf ən(d) ˈoʊn.li ɪf/"
    }
  ],
  "word": "iff"
}

{
  "categories": [
    "有2個詞條的頁面",
    "有詞條的頁面",
    "英語詞元",
    "英語連詞"
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "conj",
  "pos_title": "連詞",
  "senses": [
    {
      "categories": [
        "英語棄用形式"
      ],
      "examples": [
        {
          "ref": "1565, Thomas Stapleton, A Fortreſſe of the Faith &c., Ihon Laet, the 2. part. 112:",
          "text": "For iff the patient be aſhamed to diſcloſe hiſ wounde to the phyſician which knoweth it not , phyſicke can not helpe him."
        }
      ],
      "form_of": [
        {
          "word": "if"
        }
      ],
      "glosses": [
        "if的已棄用拼寫。"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɪf ən(d) ˈəʊn.li ɪf/"
    },
    {
      "ipa": "/ɪf ən(d) ˈoʊn.li ɪf/"
    }
  ],
  "word": "iff"
}