| 词汇 | arithmetic progression |
| 释义 | arithmetic progressionBrE /ærɪθˌmetɪk prəˈɡreʃn/ NAmE /ærɪθˌmetɪk prəˈɡreʃn/ (also arithˌmetic ˈseries ) noun a series of numbers that decrease or increase by the same amount each time , for example 2 , 4 , 6 , 8 算术数列,等差数列(如 2、4、6、8) ➡ compare geometric progression |
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