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1. Oxford American Dictionary

   gag reflex

   • n.
     a reflex action in which the muscles of the throat contract, often so as to cause retching, typically triggered by something touching the back of the mouth

   • noun: gag reflex, plural noun: gag reflexes

2. • 釋義

   n.

   名詞

   • 1. a reflex action in which the muscles of the throat contract, often so as to cause retching, typically triggered by something touching the back of the mouth the dentist uses acupuncture not only to ease the gag reflex but to reduce anxiety in patients there was a fishy smell so strong that it triggered her gag reflex