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TOEFL IELTS BNC: 11623 COCA: 12670

fluctuate

Word family 
fluc·tu·ate /ˈflʌktʃueɪt/ ●○○ AWL verb [intransitiveI]  
CHANGE/BECOME DIFFERENTif a price or amount fluctuates, it keeps changing and becoming higher and lower 〔价格或数量〕波动，上下变动，起伏 SYN vary
fluctuate between
 Prices were volatile, fluctuating between $20 and $40.
价格不稳定，在20至40美元之间波动。
fluctuate around
 The number of children in the school fluctuates around 100.
该校的学童人数在100左右波动。
 Insect populations fluctuate wildly from year to year.
昆虫的数量每年变化很大。
Examples from the Corpus
fluctuate• This procedure does not allow for adaptability, essential for applications such as process control, which must change as conditions fluctuate.• The car industry's annual production fluctuates between 5.1 million and 9.2 million vehicles.• Although each series will get a general rating based on its usual content, they can fluctuate from week to week.• Cholesterol levels in the blood fluctuate in the course of a day.• As the numbers fluctuate, old job identities are destroyed.• Seven races made up the first championship and that number has fluctuated over the years.• Share prices on the New York Stock Exchange often fluctuate wildly.• The state's income from sales taxes fluctuates with the economy.• This wealth will continue to fluctuate with the share price until he decides to cash in the options.• It will certainly be different for different species, and it may fluctuate within each species.
fluctuate wildly• By this time Snyder was lapsing in and out of consciousness and his body temperature was fluctuating wildly.• Income: Liable to fluctuate wildly.• Lily had experienced pain there and her temperature fluctuated wildly.• The price of bread cereals, on which labouring families spent a vast proportion of their wages, fluctuated wildly.• I was tall and slim but I had an eating disorder and my weight fluctuated wildly according to how I ate.• The dam trapped sediments, and water releases fluctuated wildly, depending on hydroelectric-power needs.• The play fluctuated wildly throughout the three days of the event.
From Longman Business Dictionary
fluctuatefluc·tu·ate /ˈflʌktʃueɪt/ verb [intransitiveI]
if prices, income, rates etc fluctuate, they change, increasing or falling often or regularly
Dealers know that prices fluctuate and that capital losses can be expected.
fluctuate around
The charity’s income tends to fluctuate around £100,000
—fluctuating adjectiveadj
Exports to non-EU countries will still be subject tofluctuating exchange rates.
Origin fluctuate
(1600-1700) Latin fluctuare, from fluere; → FLUENT
fluc·tu·ate verb
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 11623 COCA: 12670
fluctuate

verb

ADVERB | PREPOSITION ADVERB➤considerably, greatly大幅波動▸➤dramatically, widely, wildly急劇／大範圍／劇烈波動◇Prices have fluctuated wildly in recent years.近幾年物價波動得很厲害。➤constantly持續波動◇constantly fluctuating patterns長期波動的模式PREPOSITION➤according to隨⋯波動◇Traffic congestion fluctuates according to the time of day.交通擁堵狀況會隨一天時段的不同而變化。➤around在⋯上下波動◇The number of students fluctuates around 100.學生人數維持在 100 名左右。➤between在⋯範圍內波動◇The number of unemployed fluctuates between two and three million.失業人數在 200 萬到 300 萬之間波動。
TOEFL IELTS BNC: 11623 COCA: 12670
fluctuate verb
⇨ change 2
TOEFL IELTS BNC: 11623 COCA: 12670

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