"以旧换新" meaning in 中国語

{
  "categories": [
    {
      "kind": "other",
      "name": "中国語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "中国語 国際音声記号あり",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "中国語_成句",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "以舊換新",
      "tags": [
        "canonical",
        "Traditional-Chinese"
      ]
    }
  ],
  "lang": "中国語",
  "lang_code": "zh",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "glosses": [
        "古いものを新しいものと交換する。買い換える。"
      ],
      "id": "ja-以旧换新-zh-phrase-Ie0KS4BS"
    }
  ],
  "sounds": [
    {
      "tags": [
        "Standard-Chinese",
        "Pinyin"
      ],
      "zh_pron": "yǐjiùhuànxīn"
    },
    {
      "tags": [
        "Standard-Chinese",
        "Wade–Giles"
      ],
      "zh_pron": "i³ chiu⁴ huan⁴ hsin¹"
    },
    {
      "tags": [
        "Standard-Chinese",
        "IPA"
      ],
      "zh_pron": "/i²¹⁴⁻²¹¹ t͡ɕjoʊ̯⁵¹⁻⁵³ xwän⁵¹ ɕin⁵⁵/"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "以旧换新"
}

{
  "categories": [
    "中国語",
    "中国語 国際音声記号あり",
    "中国語_成句"
  ],
  "forms": [
    {
      "form": "以舊換新",
      "tags": [
        "canonical",
        "Traditional-Chinese"
      ]
    }
  ],
  "lang": "中国語",
  "lang_code": "zh",
  "pos": "phrase",
  "pos_title": "成句",
  "senses": [
    {
      "glosses": [
        "古いものを新しいものと交換する。買い換える。"
      ]
    }
  ],
  "sounds": [
    {
      "tags": [
        "Standard-Chinese",
        "Pinyin"
      ],
      "zh_pron": "yǐjiùhuànxīn"
    },
    {
      "tags": [
        "Standard-Chinese",
        "Wade–Giles"
      ],
      "zh_pron": "i³ chiu⁴ huan⁴ hsin¹"
    },
    {
      "tags": [
        "Standard-Chinese",
        "IPA"
      ],
      "zh_pron": "/i²¹⁴⁻²¹¹ t͡ɕjoʊ̯⁵¹⁻⁵³ xwän⁵¹ ɕin⁵⁵/"
    }
  ],
  "tags": [
    "idiomatic"
  ],
  "word": "以旧换新"
}