可引用的發言段落Citable transcript turn
#245080
講者：Speaker:
Vaccines are essentially virus that are not that potent, and that gets into our bodies, so we become immunized over it.
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可引用的發言段落Citable transcript turn
講者：Speaker:
Vaccines are essentially virus that are not that potent, and that gets into our bodies, so we become immunized over it.
j 下一段next turnk 上一段previous turn