"trials and errors" meaning in 英語

{
  "categories": [
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有詞條的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語名詞變格形",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語非詞元形式",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "英語其他不規則複數",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "trial and error"
        }
      ],
      "glosses": [
        "trial and error 的複數"
      ],
      "id": "zh-trials_and_errors-en-noun-K9tMVRL7",
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "trials and errors"
}

{
  "categories": [
    "有1個詞條的頁面",
    "有詞條的頁面",
    "英語名詞變格形",
    "英語非詞元形式"
  ],
  "lang": "英語",
  "lang_code": "en",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        "英語其他不規則複數"
      ],
      "form_of": [
        {
          "word": "trial and error"
        }
      ],
      "glosses": [
        "trial and error 的複數"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "word": "trials and errors"
}