During the crisis, oil prices fluctuated between $20 and $40 a barrel.
《牛津词典》
3. 有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
《柯林斯英汉双解大词典》
4. 经济波动致使市场物价忽起忽落。
The erratic fluctuation of market prices is in consequence of unstable economy.
《新英汉大辞典》
5. 同样的上下波动也发生在智力以外的领域。
The same fluctuation back and forth occurs in areas other than intelligence.
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6. 这些比率记录了空气温度随季节和年份的波动。
These ratios register the fluctuations of air temperatures over the seasons and years.
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7. 科学家们相信智力会随着大脑的努力而增加和波动。
Scientists believe that intelligence can expand and fluctuate according to mental effort.
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8. 分析表明，强度似乎以一种清晰的、明确的节奏在波动。
The analysis reveals that intensity appears to fluctuate with a clear, well-defined rhythm.
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9. 地磁活动是地球磁场的自然变化，其波动周期为11年。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
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10. 自从欧洲人进入普吉特海湾地区以来，鹿的数量波动很大。
The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country.
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11. 为了更好地了解更早时期的波动，我们需要使用代理记录。
To build up a better picture of fluctuations appreciably further back in time requires us to use proxy records.
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12. 在此之前，气候的变化导致了海平面的剧烈波动，恐龙因此灭绝。
Changes in climate before that period caused severe fluctuation in sea level, resulting in the extinction of the dinosaurs.
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13. 金星云层上方的二氧化硫气体水平显示出巨大且非常频繁的波动。
The level of sulfur dioxide gas above Venus's clouds shows large and very frequent fluctuations.
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14. 在草饲体系中，奶农也不受国际商品市场牛奶价格剧烈波动的影响。
In the grass-fed system, farmers are also not subject to the wildly fluctuating milk prices of the international commodity market.
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15. 白垩纪以前的气候变化导致了海平面的剧烈波动，引发了恐龙的灭绝。
Changes in climate before the Cretaceous period caused severe fluctuation in sea level, resulting in the extinction of the dinosaurs.
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16. 定期称体重是一种很好的方法，这能让你意识到任何明显的体重波动。
Weighing yourself regularly is a wonderful way to stay aware of any significant weight fluctuations.
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17. 很有可能这些波动，二氧化硫的大量增加和减少，一次又一次地发生。
It is quite possible that these fluctuations, the huge increase and decrease of sulfur dioxide, happening again and again.
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18. 这一次专家们估计，价格比峰值平均下降了40%，尽管有些价格波动更大。
This time experts reckon that prices are about 40% down on their peak on average, though some have been far more fluctuant.
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19. 有几种假说，包括地球变暖或变冷，季节波动或洋流的变化，以及大陆位置的变化。
There are several hypotheses, including warming or cooling of Earth, changes in seasonal fluctuations or ocean currents, and changing positions of the continents.
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20. 后来，在19世纪初，当温哥华堡成为哈德逊湾公司的总部时，鹿的数量继续波动。
Later on in the early years of the nineteenth century, when Fort Vancouver became the headquarters of the Hudson's Bay Company, deer populations continued to fluctuate.
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21. 但是，气候条件存在波动，造成干湿天气交替，以致可以获取的动植物数量忽高忽低。
There were, however, fluctuations in the climatic conditions, with the consequences that wet conditions were followed by dry ones, so that the availability of plants and animals oscillated brusquely.
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22. 研究人员指出，低频过程诸如河流流量和地下水水位的波动，通常不会对人类产生明显影响。
The researchers pointed out that low-frequency processes, such as fluctuations in stream flow and groundwater levels, would not usually be apparent to human populations.
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23. 这些因素包括混乱的大气波动、相对较慢但同样不稳定的海洋活动、地表变化，以及冰雪的覆盖范围。
These factors include the chaotic fluctuations of the atmosphere, the slower but equally erratic behavior of the oceans, changes in the land surfaces, and the extent of ice and snow.
Maintaining this environment is very costly, and recent research shows that even old oil paint is unaffected by wide fluctuations in temperature and humidity.
Since potential markets for the minority businesses already exist through the sponsoring companies, the minority businesses face considerably less risk in terms of location and market fluctuation.
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26. 全球气温一直在轻微地波动。
There have always been slight oscillations in world temperature.
《柯林斯英汉双解大词典》
27. 货币的兑换率始終波动。
Currency exchange rates are always subject to variation.
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28. 裁员160人的消息在社区中引起了波动。
News of 160 lay-offs had sent tremors through the community.
《柯林斯英汉双解大词典》
29. 1980年，利率开始朝着20%波动上升然后下降，又再次上升。
Interest rates began to gyrate up toward 20 percent in 1980 and then down and up again.
