cycle 有三个核心用法：① 名词「循环，周期」：a vicious cycle（恶性循环）；a life cycle（生命周期）；the economic cycle（经济周期）；② 名词「自行车」（英国口语）：cycle lane（自行车道）；③ 动词「骑自行车」：cycle to work（骑车上班）。形容词：cyclical（周期性的：cyclical unemployment = 周期性失业）。辨析：cycle（周期，强调「循环往复」）vs. pattern（模式，规律：a pattern of behaviour = 行为模式）vs. rotation（轮转，依次循环：crop rotation = 轮作）。
释义
1
n.循环，周期（反复发生的过程）
Breaking the cycle of poverty requires not only economic investment but also improvements in education, healthcare, and social mobility.
打破贫困循环不仅需要经济投资，还需要在教育、医疗保健和社会流动性方面的改善。
2
v.骑自行车
An increasing number of city commuters are choosing to cycle to work as a cost-effective and environmentally friendly alternative to public transport.
越来越多的城市通勤者选择骑自行车上班，作为公共交通的经济实惠且环保的替代方式。
语感
a vicious cycle（恶性循环）；the economic / business cycle（经济/商业周期）；life cycle（生命周期）；cycle lane（自行车道）；cyclical（周期性的）
循环，周期（a vicious cycle = 恶性循环）骑自行车（动词：cycle to work）自行车（英式：cycle = bicycle）
高频搭配：a vicious cycle（恶性循环：trapped in a vicious cycle of = 陷入…的恶性循环）；a virtuous cycle（良性循环）；the economic / business cycle（经济/商业周期：the boom-bust cycle = 繁荣-萧条周期）；the life cycle of（…的生命周期：the life cycle of a product = 产品生命周期）；cycle lane / path（自行车道）；cyclical（adj.）（周期性的：cyclical unemployment = 周期性失业；cyclical patterns = 周期性模式）；辨析：cycle（周期，强调「反复循环的整个过程」：the cycle repeats = 循环重复）vs. rotation（轮转，按顺序轮换：crop rotation = 轮作；on a rotation basis = 轮换制）vs. pattern（模式：a recurring pattern = 反复出现的模式，不一定是完整循环）。
陷阱
⚠️a vicious cycle（恶性循环）——× a vicious circle 同义，两者均正确
Unemployment leads to poverty, which limits access to education, which in turn perpetuates unemployment — a vicious cycle that proves extremely difficult to break.
✗
× a vicious circle = 完全不同的意思
✓
a vicious cycle（恶性循环）和 a vicious circle（恶性循环）均为标准英语，意思相同；vicious cycle = 美式首选；vicious circle = 英式首选；两者均指「A导致B，B加剧A，循环往复」；此句 a vicious cycle 正确；× only one is correct（两者均可接受）
失业导致贫困，贫困限制了受教育机会，进而又延续了失业——一种极难打破的恶性循环。（a vicious cycle / a vicious circle，两者均正确）
⚠️cyclical（周期性的）vs. cyclic（同义，书面程度不同）
✗
The recent rise in unemployment is largely cyclic, reflecting the natural contraction phase of the global business cycle rather than any structural change.
The recent rise in unemployment is largely cyclical, reflecting the natural contraction phase of the global business cycle rather than any structural change.
The economic data shows that the country is entering a new expansionary phase of the cycle, with rising consumer confidence and investment.
经济数据显示，该国正在进入周期的新扩张阶段，消费者信心和投资正在上升。
Research has identified a clear pattern of gender bias in the way job candidates are evaluated during interview processes.
研究发现在面试过程中评估求职候选人的方式中存在明显的性别偏见模式。
写作加分
✨ 加分词
替换：circlepatternrepeating problem
社会问题议论文经济话题政策分析话题
普通
Poor people stay poor because they can't afford education, which keeps repeating.
穷人之所以持续贫穷，是因为他们负担不起教育，这一情况不断重复。
加分 ✨
Without structural intervention, the cycle of deprivation perpetuates itself across generations: limited educational opportunities lead to low-skilled employment, which in turn entrenches poverty and limits the life chances of the next generation.
Social exclusion can trap individuals in a vicious cycle of marginalisation, unemployment, and poor mental health from which it is extremely difficult to escape.
社会排斥可以将个人困在边缘化、失业和心理健康不良的恶性循环中，极难逃脱。
a vicious cycle of（恶性循环）用法正确；trap...in a vicious cycle = 将某人困在恶性循环中；from which it is...to escape = 关系从句，语法正确
Q2近义选词
选择最恰当的词填空：
Studies have identified a consistent ___ in the data showing that wealthier students consistently outperform their peers in standardised tests.
Acycle
Bpattern
✓ 研究在数据中发现了一个一致的模式，显示较富裕的学生在标准化测试中始终超越同龄人。
pattern（模式）适合「数据中的规律性发现」；a consistent pattern in the data = 数据中的一致模式；cycle 强调「完整的循环往复过程」，此处是单向规律不是循环；showing that wealthier students outperform = 描述规律性，用 pattern
Q3义项辨析
下面四个句子中，cycle 的含义与其他三个最不同的是：
A
The government has invested in new cycle lanes across the city to encourage more sustainable forms of transport.
政府在全市投资建设新的自行车道，以鼓励更可持续的交通方式。
B
Economic booms and recessions form a natural cycle that has characterised market economies throughout history.
经济繁荣和衰退形成了贯穿历史的市场经济自然周期。
C
The cycle of violence in the region can only be broken through sustained diplomatic engagement and political compromise.
该地区的暴力循环只能通过持续的外交接触和政治妥协来打破。
D
Understanding the cycle of seasons and their impact on agricultural yields is fundamental to food security planning.
了解季节循环及其对农业产量的影响是粮食安全规划的基础。
A 中 cycle = 自行车（cycle lanes = 自行车道）；B 中 cycle = 经济周期（boom and recession cycle）；C 中 cycle = 循环（cycle of violence = 暴力循环）；D 中 cycle = 周期（cycle of seasons = 季节循环）
接着学
点击进入该词的深度解析
recurrence近义反复发生（the recurrence of the problem = 问题的反复发生；cycle 强调完整循环；recurrence 强调反复出现）