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1. Oxford American Dictionary

   air hole

   • IPA[ˈerhōl]

   美式

   • n.
     a hole or passage that allows air to pass through；a gap in a layer of ice formed over water, as used by mammals underwater to come up for air

   • noun: air hole, plural noun: air holes

2. • 釋義

   n.

   名詞

   • 1. a hole or passage that allows air to pass through the box has hidden air holes to prevent suffocation
   • ▪ a gap in a layer of ice formed over water, as used by mammals underwater to come up for air the polar bears snatch the seals through small air holes