| 释义 |
pro·gres·sion
\prəˈgreshən, prōˈ-\ noun
(-s)
Etymology: Middle English progressioun, from Middle French progression, from Latin progression-, progressio action of going forward, advancement, progress, from progressus (past participle of progredi to go forward, advance) + -ion-, -io -ion — more at progress
1. : a sequence of mathematical terms in which the terms after the first are determined according to a rule
2.
a. : an action of progressing : a movement forward : advance
< the train … is the most amusing means of progression — National Geographic >
b. : a continuous proceeding : a connected series (as of acts, events, steps) : a sequence whose continuity suggests movement or flow
< all the events and progressions of … life were gathered up and recorded — Victoria Sackville-West >
c. : the process of advancing especially to a better or higher condition : gradual development : progress
< a sphere in which spiritual progression is impossible — Matthew Arnold >
< an inner progression … from apprehension to understanding — R.W.Southern >
3.
a. : succession of musical tones or chords
b. : the movement of musical parts in harmony
c. : sequence 2c
4. : a betting system in which a player increases his bet by a given sum after each loss and decreases it after each win |