可引用的發言段落Citable transcript turn#389667講者:Speaker: Audrey TangYou can do it every other week. Nine mask for adults every two weeks. It’s all medical-grade mask. 10 if you’re a child. 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 record2020-04-28 Conversation with Robert Bosch Foundation