Police estimate the crowd at 30 000.
警方估计聚集的人有3万。
I'll prepare a revised estimate for you.
我将为你准备一份经过修正的评估报告。
Historians can't estimate the date with any (degree of) precision.
历史学家无法准确估算这个日期。
I hadn't been far wrong in my estimate of his grandson's capabilities.
我对他孙子能力的判断没有太离谱。
We were only able to make a rough estimate of how much fuel would be required.
我们只能对所需燃料的量作一个粗略估计。
The average fan spends $25 – a conservative estimate based on ticket price and souvenirs.
平均球迷花费$25–根据票价和纪念品的一个保守估计。
The estimate for extra staff and consequential costs such as accommodation was an annual $9.18 million.
额外员工引起的如住宿成本等估计每年为918万美元。
His estimate of half a million HIV-positive cases was based on an extrapolation of the known incidence of the virus.
他的50万HIV阳性病例的估计是基于对已知病毒发病率的推断。
The lowest estimate would put the worth of the jewel at ＄200.
按最低的评估这块宝石也值 200 美元。
As a rough estimate, Nigeria is three times the size of Great Britain.
粗略估计,尼日利亚是大不列颠的三倍大。
I asked three building firms to estimate for the repairs to the house.
我请了三家建筑公司估算修理房屋的费用。
She just graduated from an interior design academy and will give a free estimate.
她刚从室内设计学院毕业，会给你一个免费的估价。
Scientists estimate that smoking reduces life expectancy by around 2 years on average.
科学家们估计，吸烟使预期寿命平均缩短了大约两年时间。
Aid workers estimate that it will take years to rebuild what the earthquake took away.
救援工人估计，重建地震摧毁的地方需要花费数年时间。
I finished calculating. I estimate you have between 210 and 240 square meters of walls and ceiling.
我算完了。我估计你的墙壁和天花板的面积在210至240平方米之间。
Scientists have collected samples from crows in order to estimate the proportion of larvae in their diet.
科学家们从乌鸦那里收集了样本，以估计它们食物中幼虫的比例。
An estimate of the age of the ocean was obtained by diving the total salt in the ocean by the rate of salt added each year.
对海洋年龄的估计是通过以海洋中的总含盐量除以每年盐的增长率得出的。
Astronomers tried to estimate what solar mass could produce the required luminosity to explain liquid water on these planets.
天文学家试图通过估计太阳质量能产生多少必需的光来解释这些行星上的液态水。
To help quantify the costs of a poor diet, I recently tried to estimate this impact in terms of a most famous food, the burger.
为了帮助量化不良饮食的成本，我最近试着以一种最著名的食物——汉堡，来估算这种影响。
Scientists use these changes in ocean color to estimate chlorophyll concentration and the biomass of phytoplankton in the ocean.
科学家利用海洋颜色的变化来估计叶绿素含量以及海洋浮游植物的生物量。
The total amount of ice is even more awesome if we estimate the water released upon the hypothetical melting of the world's glaciers.
如果我们估算一下假设世界冰川融化所释放的水，那么冰的总量就更惊人了。
We can make a very good estimate from the fossil record that humans probably evolved naked skin around a million and a half years ago.
根据化石记录，我们可以更准确地判断出：人类可能在大约150万年前进化出了裸露的皮肤。
The largest firms in America and Britain together spend more that 15 billion a year on CSR, according to an estimate by EPG, a consulting firm.
根据咨询公司EPG 的评估，美英两国最大型的公司每年在企业社会责任层面上投入共计超过150亿美元。
One way to estimate how all the various processes leading to climate variability will combine is by using computer models of the global climate.
判断所有导致气候变化的过程如何结合在一起的一种方法是利用计算机上的全球气候模型。
Charles Lyell made a good estimate of the Tertiary Period from the fossil record, but his method could not be extended to earlier geological periods.
查尔斯·莱尔根据化石记录对第三纪作出了很好的估计，但他的方法不能扩展到更早的地质时期。
The Chinese also launched weather balloons near their theodolites to measure atmospheric temperature and pressure changes to better estimate refraction errors.
中国还在经纬仪附近发射了气象气球来测量大气温度和压力变化，以更好地估计折射误差。
The survey asked respondents with meeting facilities to estimate how much revenue their airport earned from its meeting facilities during the last financial year.
调查要求拥有会议设施的受访者估计，他们的机场在上一财政年度从会议设施中获得了多少收入。
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