| 单词 | progression |
| 释义 | progression n. 1. the act or an instance of progressing (a mode of progression). 2. a succession; a series. 3. Math. a = arithmetic progression. b = geometric progression. c = harmonic progression. 4. Mus. passing from one note or chord to another. Derivatives progressional adj. Etymology: ME f. OF progression or L progressio (as PROGRESS) |
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