北京冬奥期间，如何防疫受到外界普遍关注。冬奥防疫有哪些令人瞩目的高科技？这一期《读报人的奇幻世界》带你走近冬奥防疫的那些“黑科技”！ During the Beijing Winter Olympics and Paralympics, China’s COVID-19 measures have caught much attention. What advanced and smart technologies are being used to prevent COVID-19 during the Games? Watch this episode of Thought Bubble and see what they are.