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1. Oxford Dictionary

   arithmetic progression

   英式

   • n.
     a sequence of numbers in which each differs from the preceding one by a constant quantity (e.g. 1, 2, 3, 4, etc.; 9, 7, 5, 3, etc.).；the relation between numbers in an arithmetic progression

   • noun: arithmetic progression, plural noun: arithmetic progressions

2. • 釋義

   n.

   名詞

   • 1. a sequence of numbers in which each differs from the preceding one by a constant quantity (e.g. 1, 2, 3, 4, etc.; 9, 7, 5, 3, etc.).
   • ▪ the relation between numbers in an arithmetic progression the numbers are in arithmetic progression