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1. Oxford Dictionary

   aeration

   • IPA[ɛːˈreɪʃn]

   英式

   • n.
     the introduction of air into a material

   • noun: aeration, plural noun: aerations

2. • 釋義

   n.

   名詞

   • 1. the introduction of air into a material raised beds improve the drainage and aeration of the soil