新闻搜索中返回图像的质量

Question

“新闻搜索”会返回一个缩略图和一个“原始”（如果originalImg = true），但是像本例中一样，有时“原始”图像似乎与该缩略图相同。 该怎么办？

{
  "provider": [
    {
      "name": "British Cycling",
      "_type": "Organization"
    }
  ],
  "category": "Sports",
  "about": [
    {
      "readLink": "https://api.cognitive.microsoft.com/api/v7/entities/da2548ee-1b26-f939-06b4-2fae57e075e7",
      "name": "Glasgow"
    }
  ],
  "description": "British Cycling has today confirmed the riders who will represent the Great Britain Cycling Team in the men\u2019s and women\u2019s road race and time trial events at the Glasgow 2018 European Championships. Mark Cavendish and Dani Rowe are amongst the riders ...",
  "name": "British Cycling confirms road teams for the Glasgow 2018 European Championships",
  "datePublished": "2018-07-24T15:24:00.0000000Z",
  "image": {
    "thumbnail": {
      "height": 112,
      "contentUrl": "https://www.bing.com/th?id=ON.B811DB01199E72A53D9A87865D554C2C&pid=News",
      "width": 200
    },
    "contentUrl": "https://www.britishcycling.org.uk/200/112/zuvvi/media/bc_images/bc_gb/2017/20170904-great-britain-cycling-team-mark-cavendish-3000.1504517896.jpg"
  },
  "url": "https://www.britishcycling.org.uk/gbcyclingteam/article/20180724-gb-cyclingteam-news-British-Cycling-confirms-road-teams-for-the-Glasgow-2018-European-Championships-0"
}