【#北京冬奧】食物喜從天降？北京冬奧智能餐廳，軌道送餐減少染疫風險！| 寰宇#關鍵字新聞2022.02.03
寰宇#關鍵字新聞 Global Hashtag News · 寰宇新聞台
February 4, 20221m 11s
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