[] a regular pattern of events循环◆a vicious (= very bad) cycle of reduced spending, lower production and unemployment开支减少、生产下降和失业的恶性循环◆Fashions tend to go in cycles.时装往往周而复始。◆breaking the cycle of five working days and two leisure days打破五个工作日和两个休息日的循环a pattern that an economy, an industry, a market, etc. tends to follow, with periods of success and periods of difficulty happening regularly one after another（经济、行业、市场等的）周期，循环◆The market is at the bottom of the cycle and should start improving soon.市场正处于周期的底部，应该很快开始复苏。◆The IT industry has been through many boom-and-bust cycles.信息技术产业经历过许多繁荣 ── 萧条的循环。a single period of success, failure, etc. that forms part of a regular series（由成功、失败等构成的）周期◆The economy appears to be moving into a down cycle.经济似乎正在进入下降周期。◆a growth cycle增长周期a regular period of time during which sb/sth completes a particular activity（完成某项活动的）周期◆We are trying to shorten our product-development cycle.我们正在设法缩短产品的开发周期。◆We tend to work in 12-month cycles.我们倾向于以 12 个月的周期工作。accounting cycle billing cycle business cycle economic cycle family life cycle Kondratieff cycle life cycle product life cycle trade cycle