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1. Oxford American Dictionary

   surgical mask

   • n.
     a mask that covers the mouth and nose and acts as a barrier to the transmission of infectious agents, intended for use in surgical operations or other procedures requiring aseptic conditions

   • noun: surgical mask, plural noun: surgical masks

2. • 釋義

   n.

   名詞

   • 1. a mask that covers the mouth and nose and acts as a barrier to the transmission of infectious agents, intended for use in surgical operations or other procedures requiring aseptic conditions even a routine cleaning means dentists put on surgical masks he suggested the spectators wear surgical masks to protect themselves from coronavirus
3. • 更多解釋

   surgical mask

   • n.
     a mask that covers the mouth and nose and acts as a barrier to the transmission of infectious ... even a routine cleaning means dentists put on surgical masks he suggested the spectators wear surgical masks to protect themselves from coronavirus

   Oxford Dictionary