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#404316
講者：Speaker:
Is there something that’s technologically unusual about it? In my understanding, the face masks, it’s very primitive technology on all this.
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可引用的發言段落Citable transcript turn
講者：Speaker:
Is there something that’s technologically unusual about it? In my understanding, the face masks, it’s very primitive technology on all this.
j 下一段next turnk 上一段previous turn