| 单词 | cycle |
| 释义 | cycle /suy"keuhl/, n. , v. , cycled, cycling. n. 1. any complete round or series of occurrences that repeats or is repeated. 2. a round of years or a recurring period of time, esp. one in which certain events or phenomena repeat themselves in the same order and at the same intervals. 3. any long period of years; age. 4. a bicycle, motorcycle, tricycle, etc. 5. a group of poems, dramas, prose narratives, songs etc., about a central theme, figure, or the like: the Arthurian cycle. 6. Physics. a. a sequence of changing states that, upon completion, produces a final state identical to the original one. b. one of a succession of periodically recurring events. c. a complete alteration in which a phenomenon attains a maximum and minimum value, returning to a final value equal to the original one. 7. Math. a permutation of a set of elements that leaves the original cyclic order of the elements unchanged. 8. Computers. a. the smallest interval of time required to complete an operation in a computer. b. a series of computer operations repeated as a unit. 9. hit for the cycle, Baseball. (of one player) to hit a single, double, triple, and home run in one game. v.i. 10. to ride or travel by bicycle, motorcycle, tricycle, etc. 11. to move or revolve in cycles; pass through cycles. [1350-1400; ME cicle < LL cyclus < Gk kýklos cycle, circle, wheel, ring, disk, orb; see WHEEL] |
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