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1. Oxford Dictionary

   delta

   • IPA[ˈdɛltə]

   英式

   • n.
     a triangular tract of sediment deposited at the mouth of a river, typically where it diverges into several outlets

   • noun: delta, plural noun: deltas

2. • 釋義

   n.

   名詞

   • 1. a triangular tract of sediment deposited at the mouth of a river, typically where it diverges into several outlets the Nile delta a huge delta system developed