可引用的發言段落Citable transcript turn#461321講者:Speaker: Katharin TaiThe way I understand is that it sometimes happens in contact tracing, so if someone is tested positive that then it’s used retrospectively to find possible contacts. 逐字稿導覽Transcript navigation查看前後文View context分享此段Share turn來源逐字稿Source record2021-02-22 Interview with DIE ZEIT