许多科学家认为铅会在土壤和雪中停留更长的时间。
Many scientists had believed that the lead would stay in soil and snow for a longer period.
因此，许多科学家认为，哭泣在某种程度上有助于我们处理情感问题。
Many scientists, therefore, believe that crying somehow helps us cope with emotional situations.
许多科学家认为，由于气候变化，太平洋变暖引起的厄尔尼诺现象正愈演愈烈。
Many scientists believe that El Nino events, caused by warming in the Pacific, are becoming more intense as a result of climate change.
许多科学家认为会是对于外星人的发现。
A number of scientists believe it would be the discovery of aliens.
许多科学家认为这正是体现出了日本的强压力。
Many scientists supposed it shows the high pressure of Japanese.
许多科学家认为，地球遭受小行星或彗星的直接撞击可能是恐龙灭绝的原因。
Many scientists believe the Earth suffered a direct hit from an asteroid or that a comet could be to blame for the extinction.
直到最近，许多科学家认为北极到本世纪末的时候可能会在夏季完全变成无冰世界。
Until recently, many scientists thought it might take until the end of the century for the North Pole to become completely ice-free during the summer.
但是许多科学家认为，博物馆真正的重要性在于它给我们一些未来的启示。
But many scientists think that the real importance of a museum lies in giving us some hint of future.
当派珀博格开始与埃里克斯对话时，许多科学家认为动物不能进行任何思维。
When Pepperberg began her dialogue with Alex, many scientists believed animals were incap able of any thought.
尽管这两个脑半球看上去像是镜子中的镜像，但许多科学家认为它们具有不同的功能。
Although these halves may look like mirror images of each other, many scientists believe they have different functions.
许多科学家认为，它们代表了人类走出非洲的一次失败尝试，与今天的人类没有基因联系。
Many scientists viewed them as a failed human migration from Africa, with no genetic connection to humanity today.
事实上，许多科学家认为，临床医生应考虑处方锻炼作为抑郁症患者的治疗计划的一部分。
In fact, a number of scientists have argued that clinicians should consider prescribing exercise as part of a treatment plan for patients with depression.
许多科学家认为，对良好的判断力最佳预测者不是智商，也不是经验，而是愿意进行反省。
Many scientists argue that the best predictor of good judgment isn't intelligence or experience; it's the willingness to engage in introspection.
戈尔和许多科学家认为，使用化石燃料和气溶胶，伴随着其他人类活动，造成了全球气候变暖。
Gore and many scientists argue that the use of fossil fuels and aerosols, along with other human activity, is causing global warming.
许多科学家认为，饱和脂肪和反式脂肪在提高血液中的胆固醇方面，比膳食胆固醇产生更大的影响。
Many scientists believe that saturated fats and trans fats have a greater impact than does dietary cholesterol in raising blood cholesterol.
许多科学家认为北极地区的高温与温室气体的排放有关。温室气体排放被认为是全球变暖的罪魁祸首。
Many scientists link the higher Arctic temperatures to the greenhouse gas emissions blamed for global warming.
许多科学家认为一些在心血管方面起作用的损害性炎症和代谢过程在心理健康方面也起到了一定作用。
Still, many scientists are convinced that some damaging inflammatory and metabolic processes involved in cardiovascular disease may also play a role in mental health.
许多科学家认为太阳和太阳系的其他部分是由一团称为“太阳星云”的巨大的旋转着的气体和尘埃星云形成来的。
Many scientists think our solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula.
许多科学家认为打哈欠让你更加警觉。当你打哈欠时，你呼吸更深，你还伸展你脸部和脖子上的肌肉。
Some scientists believe that yawning makes you more a alert, when you yawn, you breathe more deeply, you also stretch your muscle in your face and your neck.
澳大利亚是全世界温室气体人均排放量最高的国家之一，许多科学家认为温室气体是造成全球气温上升的主要原因。
Australia is one of the world's worst per capita emitters of greenhouses gases, which many scientists believe contribute to global warming.
对此，人们有不同的看法，不过如今许多科学家认为碳信贷计划（利用诸如植树这样的方法来抵消二氧化碳排放量）弊大于利。
Opinion is divided, but many scientists now believe carbon credit schemes (where carbon dioxide emissions are offset using techniques such as planting trees) do more damage than good.
谈判人员经过两个星期的磋商推敲，还是无法就减少温室气体的排放达成协定；许多科学家认为温室气体是全球变暖的罪魁祸首。
Negotiators meeting over the past two weeks have failed to finalize a global agreement on cutting greenhouse gas emissions blamed for global warming.
许多科学家认为从亚洲迁移到北美洲的本土原始居民，不是突然迁移的而是一波一波经过数千年迁移过去的。这句话这么理解对吗？
Most scientists think that the native peoples migrated originally from Asia to North America, not all at once but in wave after wave over thousands of years.
从前许多科学家认为只有那些较轻的能够引起温室效应的气体，例如二氧化碳，才能够围绕地球游动，但是现在看来带有悬浮颗粒的烟雾也是可以的。
While many scientists once thought that only lighter greenhouse gases, such as carbon dioxide, could travel across the Earth, they now say that aerosol clouds can too.
许多科学家曾经认为，同卵双胞胎在外貌上的相似是由基因决定的，而他们之间的性格、智力和其他差异则是受到环境的影响。
Many scientists once believed that physical similarities between identical twins are genetic, while their personalities, intelligence and other differences between them are an effect of their environment.
许多科学家甚至认为暗物质就藏在我们的鼻子底下，地球上就有暗物质存在。
Many scientists think dark matter might even be hiding right under our noses here on Earth.
此前，世界上许多科学家都认为地球上的原生命组成成分是由陨石从外太空带到地球来的，而陨石中左型氨基酸的发现进一步证实了这一猜想。
Many experts believe biological raw ingredients were carried to Earth in lumps of asteroid rock.
此前，世界上许多科学家都认为地球上的原生命组成成分是由陨石从外太空带到地球来的，而陨石中左型氨基酸的发现进一步证实了这一猜想。
Many experts believe biological raw ingredients were carried to Earth in lumps of asteroid rock.
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