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词汇 fluctuate
释义

Definition of fluctuate in English:

fluctuate

verb ˈflʌktjʊeɪtˈflʌktʃʊeɪtˈfləktʃəˌweɪt
[no object]
  • Rise and fall irregularly in number or amount.

    (数量)不规则波动,起伏

    trade with other countries tends to fluctuate from year to year

    与他国贸易额往往逐年波动。

    Example sentencesExamples
    • Oxygen levels have fluctuated since the air became oxygen rich, but not by much.
    • The original volume levels fluctuate, particularly when the single takes are employed.
    • Mood gently fluctuates as the light levels change, complemented by the rhythm of the mist continually settling and rising.
    • Prices then rose to £25 in the 1730s, and fluctuated about that level into the 1790s.
    • It also shows a person's ability to govern and fluctuate between rising and falling.
    • However, experts confirmed that levels of this protein fluctuated naturally.
    • Volume levels fluctuate wildly, leading to constant struggles with the remote.
    • Union membership has fluctuated as different industries rise and decline, governments and generations change.
    • As the general price level fluctuates, the dollar is bound to become a unit of different magnitude.
    • He requires large doses of narcotics for pain control and his level of consciousness fluctuates greatly.
    • Jobs in industry have fluctuated with the level of the pound.
    • Avoid alcohol because it can cause your blood sugar levels to fluctuate and induces irritability.
    • Moods and emotions are varied and fluctuating as you deal with adversaries and rally around friends.
    • They stare into an infinite chasm that opens up in the face of using a limited amount of notes that fluctuate from serene moments to bawling noise storms.
    • This means that the absolute amount of re-synthesized sucrose fluctuates considerably with fruit age, by as much as a factor of 3.
    • Bond funds also pay income, usually on a monthly basis, but the amount you receive can fluctuate.
    • The amount owed each month fluctuated with holidays, missed lessons and book expenses.
    • The amount of soap required by MCC fluctuates with the demand.
    • Thoreau discovered that the level of the pond fluctuates by about five feet over a period of 25 years.
    • Symptoms seem to vary from year to year, and crop levels fluctuate.
    Synonyms
    vary, differ, shift, change, alter, waver, swing, oscillate, alternate, rise and fall, go up and down, see-saw, yo-yo, be unstable, be unsteady

Origin

Mid 17th century (earlier (late Middle English) as fluctuation): from Latin fluctuat- 'undulated', from the verb fluctuare, from fluctus 'flow, current, wave', from fluere 'to flow'.

Definition of fluctuate in US English:

fluctuate

verbˈfləktʃəˌweɪtˈfləkCHəˌwāt
[no object]
  • Rise and fall irregularly in number or amount.

    (数量)不规则波动,起伏

    trade with other countries tends to fluctuate from year to year

    与他国贸易额往往逐年波动。

    Example sentencesExamples
    • It also shows a person's ability to govern and fluctuate between rising and falling.
    • Union membership has fluctuated as different industries rise and decline, governments and generations change.
    • They stare into an infinite chasm that opens up in the face of using a limited amount of notes that fluctuate from serene moments to bawling noise storms.
    • Mood gently fluctuates as the light levels change, complemented by the rhythm of the mist continually settling and rising.
    • Volume levels fluctuate wildly, leading to constant struggles with the remote.
    • Symptoms seem to vary from year to year, and crop levels fluctuate.
    • He requires large doses of narcotics for pain control and his level of consciousness fluctuates greatly.
    • Oxygen levels have fluctuated since the air became oxygen rich, but not by much.
    • However, experts confirmed that levels of this protein fluctuated naturally.
    • The amount owed each month fluctuated with holidays, missed lessons and book expenses.
    • Avoid alcohol because it can cause your blood sugar levels to fluctuate and induces irritability.
    • Bond funds also pay income, usually on a monthly basis, but the amount you receive can fluctuate.
    • Jobs in industry have fluctuated with the level of the pound.
    • The amount of soap required by MCC fluctuates with the demand.
    • Moods and emotions are varied and fluctuating as you deal with adversaries and rally around friends.
    • As the general price level fluctuates, the dollar is bound to become a unit of different magnitude.
    • This means that the absolute amount of re-synthesized sucrose fluctuates considerably with fruit age, by as much as a factor of 3.
    • Prices then rose to £25 in the 1730s, and fluctuated about that level into the 1790s.
    • The original volume levels fluctuate, particularly when the single takes are employed.
    • Thoreau discovered that the level of the pond fluctuates by about five feet over a period of 25 years.
    Synonyms
    vary, differ, shift, change, alter, waver, swing, oscillate, alternate, rise and fall, go up and down, see-saw, yo-yo, be unstable, be unsteady

Origin

Mid 17th century (earlier ( late Middle English) as fluctuation): from Latin fluctuat- ‘undulated’, from the verb fluctuare, from fluctus ‘flow, current, wave’, from fluere ‘to flow’.

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