"up someone's alley" meaning in 英语

{
  "categories": [
    {
      "kind": "other",
      "name": "帶有非標準語言標題的頁面",
      "parents": [],
      "source": "w"
    },
    {
      "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": "英語介詞短語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "英語詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "有使用例的英語詞",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "英語非正式用語",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "This article would be right up his alley. Why don't you show it to him?",
          "translation": "他应该对这篇文章挺感兴趣的，不如给他看看吧？"
        }
      ],
      "glosses": [
        "符合某人的，适合某人的，某人感兴趣的"
      ],
      "id": "zh-up_someone's_alley-en-prep_phrase-klB5ndg3",
      "tags": [
        "informal"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "down someone's alley"
    },
    {
      "word": "right up someone's alley"
    },
    {
      "word": "up someone's street"
    }
  ],
  "word": "up someone's alley"
}

{
  "categories": [
    "帶有非標準語言標題的頁面",
    "有1個詞條的頁面",
    "有詞條的頁面",
    "英語介詞短語",
    "英語詞元"
  ],
  "lang": "英语",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        "有使用例的英語詞",
        "英語非正式用語"
      ],
      "examples": [
        {
          "text": "This article would be right up his alley. Why don't you show it to him?",
          "translation": "他应该对这篇文章挺感兴趣的，不如给他看看吧？"
        }
      ],
      "glosses": [
        "符合某人的，适合某人的，某人感兴趣的"
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "down someone's alley"
    },
    {
      "word": "right up someone's alley"
    },
    {
      "word": "up someone's street"
    }
  ],
  "word": "up someone's alley"
}