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1. Oxford Dictionary

   pre-exposure

   • IPA[ˌpriːɪkˈspəʊʒə]

   英式

   • n.
     previous or premature exposure to something, especially to a disease or infection

   • noun: pre-exposure, plural noun: pre-exposures

2. • 釋義

   n.

   名詞

   • 1. previous or premature exposure to something, especially to a disease or infection pre-exposure vaccination