所以直奔主題。我有一個問題，我從 api 獲取數據作為對象數組。每個對象包括一個城市和一個區。城市和地區是包含名稱和 ID 的對象  city: Object    id: 3    name: "Rathbury"  district: Object    id: 39    name: "Bosnia and Herzegovina District"更新： 輸入[  {    "title": "Kris Lodge",    "location_text": "5739 Jakob Prairie Suite 451\nWest Leraview, MI 35816",    "latitude": "",    "longitude": "",    "phone_numbers": [      "01648997890",      "01038129111"    ],    "emails": [      "[email protected]",      "[email protected]"    ],    "city": {      "id": 9,      "name": "Bernhardburgh"    },    "district": {      "id": 13,      "name": "Hong Kong Neighbourhood"    }  },  {    "title": "Tanner Circles",    "location_text": "4513 Patrick Junctions\nNorth Priceport, CT 05572-1565",    "latitude": "",    "longitude": "",    "phone_numbers": [      "01894655129",      "01768939354",      "01054035727",      "01120801876"    ],    "emails": [      "[email protected]",      "[email protected]",      "[email protected]"    ],    "city": {      "id": 3,      "name": "Rathbury"    },    "district": {      "id": 11,      "name": "Vanuatu Neighbourhood"    }  },  {    "title": "Walsh Harbors",    "location_text": "5300 McGlynn Flat\nGustaveville, PA 08941-6431",    "latitude": "",    "longitude": "",    "phone_numbers": [      "01330125574"    ],    "emails": [      "[email protected]",      "[email protected]",      "[email protected]"    ],    "city": {      "id": 15,      "name": "Wintheiserfort"    },    "district": {      "id": 34,      "name": "Armenia Neighbourhood"    }  },  {    "title": "Botsford Villages",    "location_text": "461 Zemlak Hollow Suite 549\nLangworthberg, NE 40867-0943",    "latitude": "",    "longitude": "",    "phone_numbers": [      "01955713451",      "01819751112",      "01366897031"    ],一個城市可以出現兩次，但一個地區不能出現。如何只列出城市內的地區一次？這是顯示更多詳細信息的圖像。我怎樣才能得到展示Mali Area和Bosnia and Herzegovina District下Amparoville一次？