我目前正在为电子商务网站构建Schema.org模板，目的是生成Google Shopping Feed。

我正在努力理解定义销售价格的正确方法-即具有临时降价的产品。

我考虑的选项是L

• 具有多个“价格规格”项的单个“要约”
• 带有一个“ PriceSpecification”的多个“ Offer”项目
• 或者也许是完全其他的东西？

带有多个“价格规格”项目的单个“要约”

  "offers": {
    "@type": "Offer","url": "https://kx.com/url","itemCondition": "http://schema.org/UsedCondition","availability": "http://schema.org/InStock","PriceSpecification": [
      {
        "@type": "PriceSpecification","price": 15.00,"priceCurrency": "USD"
      },{
        "@type": "PriceSpecification","priceCurrency": "USD","validFrom": "2020-01-01","validThrough": "2020-02-01",}
    ],},

带有一个“ PriceSpecification”的多个“ Offer”项目

  "offers": [
    {
      "@type": "Offer","PriceSpecification": [
        {
          "@type": "PriceSpecification","priceCurrency": "USD"
        }
      ],{
      "@type": "Offer",}
      ],}
  ]
  },

还是完全不同的东西？我正在努力寻找与此相关的任何结论性文件。