an irregular sleeping pattern不规律的睡眠模式a pattern of diamonds and squares菱形和正方形构成的图案pattern ♦︎ cycle ♦︎ rhythmThese are all words for the regular way in which sth happens or is done.这些词均表示模式、规律。PATTERNS AND COLLOCATIONS 句型和搭配◆a / an regular / irregular pattern / cycle / rhythm◆a natural cycle / rhythm◆to break a pattern / cycle / rhythm◆the cycle / rhythm of the seasons■pattern [countable] the regular way in which sth happens or is done模式；方式◆changing patterns of behaviour / work / weather行为／工作／天气变化模式◆an irregular sleeping pattern不规律的睡眠模式◆The murders all seem to follow a (similar) pattern(= happen in the same way).这些凶杀案似乎同出一辙。◆There is no set pattern for these meetings.这些会议没有固定模式。■cycle [countable] the fact of a series of events being repeated many times, always in the same order循环◆They could not break the cycle of harvest failure, food shortages, price increases and misery.他们无法打破从粮食歉收、食品短缺、物价上涨、直至穷困凄惨这一循环。◆This cycle of events continually repeats itself.这些事件循环往复，周而复始。◆the life cycle of the butterfly(= the series of forms into which it changes as it develops)蝴蝶的生命周期▸cyclic /ˈsaɪklɪk, ˈsɪklɪk/ ( cyclical)
adjective
[usually before noun] ◆the cyclic processes of nature自然界的循环过程◆Economic activity often follows a cyclical pattern.经济活动常常遵循周期性模式。■rhythm [countable] a regular pattern of changes or events规则变化；规律◆the rhythm of the tides潮汐的变化规律◆Lack of sleep can upset your daily rhythm.缺少睡眠可能扰乱生活节奏。◆My body rhythms had not yet adapted to the ten-hour time difference.我的生物钟还没有适应十个小时的时差。 see also rhythm ⇨ rhythmNOTE辨析 Pattern, cycle or rhythm?A cycle is the most regular of these and a pattern is the least regular and most likely to change over time. * cycle一词所表示的规律性最强，pattern最弱而且最可能随时间而改变◆changing cycles/rhythms of behaviour/work/weatherPattern is used especially to talk about people's work and behaviour; cycle is used especially to talk about events in the natural world; rhythm is used especially to talk about how people's bodies adapt to changing conditions. * pattern尤指人的工作模式和行为模式；cycle尤指自然界事件发生的规律；rhythm尤指人体随条件变化进行调节的模式。