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1. Oxford Dictionary

   air pump

   • IPA[ˈɛː pʌmp]

   英式

   • n.
     a device for pumping air into or out of an enclosed space.

   • noun: air pump, plural noun: air pumps

2. • 更多解釋

   air pump

   • IPA[ˈer ˌpəmp]

   美式

   • n.
     a device for pumping air into or out of an enclosed space.

   Oxford American Dictionary