During the crisis, oil prices fluctuated between $20 and $40 a barrel.

在危机时期，每桶石油价格在20元至40元之间波动。

The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country.

自从欧洲人进入普吉特海湾地区以来，鹿的数量波动很大。

Findings from the upper sections of the cores have confirmed what scientists already knew—climate during the last ice age fluctuated rapidly.

来自岩心上部的发现证实了科学家们已经知道的情况：最后一个冰河时代的气候变化非常快。

He fluctuated between hopes and fears.

他在希望和恐惧中徘徊。

He fluctuated between hope and despair.

他时而充满希望时而失望。

Asian shares gained while U.S. index futures fluctuated.

亚洲股市走更高，美股期货波动。

We had already perceived how the temperature fluctuated.

我们已经注意到温度的波动情况。

The reasons given for carrying out the policy have also fluctuated.

推行这一政策的理由也在不断变化。

Their total leisure time per week fluctuated between 22 hours and 35 hours.

他们每周的空闲工夫在22个小时到35个小工夫上下波动。

Sincethen the 35-year-old's appearance has fluctuated from being skinny tovery skinny.

从那时起，现年35岁的贝嫂就不断地在很瘦和瘦的皮包骨之间波动。

Over the past 80 years the significance it has been accorded has fluctuated wildly.

在过去的80年中，它被赋予的重要性大起大落。

Cancer clue. Levels of tumor DNA in a colon patient's blood fluctuated during treatment.

治疗过程中结肠瘤患者血液中的癌细胞DNA波动。

The dollar value of that cybercurrency has fluctuated sharply, but overall it has soared.

网络货币的价值剧烈震荡，但总体呈大幅上升趋势。

But spotty clouds rolled in and the ambient light fluctuated between direct and diffused sun.

但天空中云团滚滚，环境光线也在直射和散射的阳光间交替。

The rate of infection in humans in control villages fluctuated but remained at baseline levels.

在未受干预的两个村庄中，人感染率上下波动，但是都维持在一个基本水平。

OVER the past few years the reputations of the rich world's central bankers have fluctuated wildly.

在过去的几年里，发达国家的中央银行行长们的名誉几经大起大落。

Delta usually shines at magnitude 2.3 but has slowly fluctuated to as bright as 1.8 since July 2000.

delta平常的亮度是2.3等，但从2000年7月以来它的亮度逐渐地上升到1.8等。

In recent years, our economy fluctuated significantly, accompanied with deflation and high growth rate.

近年来，我国经济波动比较大，甚至出现了通货紧缩和高增长并存的现象。

Their blood-insulin levels fluctuated less after fasting, suggesting they were more resistant to diabetes.

在禁食后，移植组的血胰岛素波动较小，显示它们抵御糖尿病的能力更强。

U.S. aid to Yemen has fluctuated over the years, depending on how grave the terror threat is perceived to be.

数年来美国在援助也门问题上一直摇摆不定，考量的标准是其对美国的恐怖威胁程度。

European stocks fluctuated between gains and losses as a resurgence in takeover activity offset declines in auto-industry shares.

欧洲股市在本交易日上下波动，收购活动的出现抵消了汽车业个股下跌的影响。

His grades fluctuated from Ds to Bs, and I had to have the old mid-semester “Do you want to drop out?” talk with him once again.

他的平时成绩总在D和B之间摇摆不定。 我不得不在期中又一次找他谈话，"你是否想要退课?"

Last semester the scores of the foreign students fluctuated irregularly, but showed an obvious increase after the reform in teaching.

上学期留学生的考试成绩一直无规律地波动，在教学改革后成绩有明显上升。

In the process of secondary succession from conifer - broadleaf forest to broadleaf forest, species richness fluctuated remarkably.

在针阔混交林向阔叶林演替过程中，物种丰富度指数表现为较大的波动性。

In recent years, currency exchange rates have fluctuated frequently, so more problems have existed when using exchange rates to calculate GDP.

近年来，货币汇率经常波动，用汇率计算GDP时，存在更多问题。

Productivity in the United States has fluctuated widely in recent decades. From 1979 to 1990, U.S. productivity grew by a slow 1.4% annually.

美国的生产力在这数十年间大幅度地波动，1979-1999年间，美国的生产力年度增长率缓慢得只有1.4%。