fluctuate

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英 { "us": "", "uk": "" }
数据源: ai_enrichment
指数量、价格、情绪等不规则地上下变动或波动,常用于描述不稳定的变化。

用法要点

句型搭配

常用作不及物动词,表示某物自身波动;也可作及物动词,表示使某物波动。常与between...and...或around连用表示范围。

• fluctuate between high and low
• fluctuate around a certain level
• prices fluctuate daily

介词用法

常与between搭配表示在两个值之间波动,与around搭配表示围绕某个值波动,与over time或during表示时间范围内的波动。

• fluctuate between 10 and 20
• fluctuate around the average
• fluctuate over the past year

语域说明

多用于正式或学术语境,如经济、科学、统计等领域描述数据变化;日常对话中较少使用,更常用vary或change。

• stock prices fluctuate
• temperature fluctuates seasonally
• market demand fluctuates

基础例句

The temperature tends to fluctuate a lot in spring, so dress in layers.

春天温度波动很大,最好穿多层衣服。

Her mood fluctuates depending on the weather—sunny days make her happy.

她的情绪随天气变化,晴天时她会很开心。

Gas prices have been fluctuating recently, making it hard to budget for trips.

最近油价一直在波动,很难为出行做预算。

The Wi-Fi signal fluctuates in my room, so video calls sometimes drop.

我房间的Wi-Fi信号不稳定,视频通话有时会中断。

高级例句

In economics, exchange rates often fluctuate due to market speculation and political events.

在经济学中,汇率常因市场投机和政治事件而波动。

The study found that patient recovery times fluctuated significantly based on treatment protocols.

研究发现,患者康复时间根据治疗方案有显著波动。

To mitigate risk, investors diversify portfolios to avoid losses when stock prices fluctuate.

为降低风险,投资者分散投资组合,以避免股价波动时的损失。

Climate models predict that precipitation will fluctuate more intensely in coming decades.

气候模型预测,未来几十年降水量将更剧烈地波动。

高频搭配

verb

prices fluctuatedemand fluctuatestemperatures fluctuatelevels fluctuaterates fluctuate

adjective

wildly fluctuateconstantly fluctuatesignificantly fluctuateseasonally fluctuaterandomly fluctuate

noun

price fluctuationsmarket fluctuationstemperature fluctuationscurrency fluctuationssupply fluctuations

adverb

fluctuate widelyfluctuate constantlyfluctuate slightlyfluctuate unpredictablyfluctuate seasonally

preposition

fluctuate betweenfluctuate aroundfluctuate over timefluctuate duringfluctuate from...to...

phrase

subject to fluctuationexperience fluctuationsshow fluctuationcause fluctuationreduce fluctuation

常见错误

❌ 错误:The price fluctates every day.
✓ 正确:The price fluctuates every day.

错误拼写为'fluctates',正确拼写是'fluctuates',注意包含'tu'。

❌ 错误:His opinion fluctuates with his friend.
✓ 正确:His opinion fluctuates depending on his friend's influence.

fluctuate通常描述数量或状态的波动,不直接与人搭配;应说明波动的原因或范围。

近义词辨析

vary

vary强调变化或差异,可以是规则或不规则的变化,范围更广;fluctuate特指上下波动或不稳定变化,常与数值相关。

Prices vary by region (不同地区价格不同), but they fluctuate daily (但每天波动)。

oscillate

oscillate更正式,多用于物理或技术语境,指有规律地来回摆动;fluctuate更通用,描述不规则或不可预测的变动。

The pendulum oscillates steadily (钟摆稳定摆动), while stock markets fluctuate unpredictably (而股市波动不可预测)。