科学家们说，很久以前的建筑工人也许是在石头上绑上木杆，然后在沙子上滚动。
Long-ago builders could have attached wooden poles to the stones and rolled then across the sand, the scientists say.
其中约80%的谷物来自谷类作物，例如大麦，另有约10%为小块的根茎，包括百合的根茎，科学家们说，这会让啤酒更甜。
The majority of the grains, about 80%, were from cereal crops like barley, and about 10% were bits of roots, including lily, which would have made the beer sweeter, the scientists say.
科学家们说他们已经搜集到比预期更多的数据。
Scientists say they've already collected more data than had been expected.
科学家们说，音乐能让我们的大脑“开心”，这说明了音乐在世界各地文化中的重要性。
Scientists say that music makes our brain "feel happy" and it explains the importance of music in cultures all over the world.
用纳米机器人对抗癌症在今天还只是一个想法，但科学家们说，这在未来将成为可能。
Fighting cancer with nano-robots is only an idea today, but scientists say that it would be possible in the future.
科学家们说，这可能是大黄蜂飞行的方式，或者也许是它们发出的嗡嗡声。
This could be the way bumblebees fly or perhaps the buzzing sound they make, say the scientists.
科学家们说，仍然需要增加食物产量的新方法。
But novel ways to increase food production will also be needed, say the scientists.
科学家们说，这些水足够未来月球殖民者使用。
That's enough water to be useful to future lunar colonists, scientists say.
但是科学家们说，文化组学一直受限于缺乏数据量。
But scientists say culturomics has been hampered by a lack of quantitative data.
但现在，科学家们说冥想者可能会受益于他们大脑的变化。
But now, scientists say that meditators like my husband may be benefiting from changes in their brains.
阿伯丁大学科斯特利兹中心的科学家们说这个开关控制着甘丙肽基因。
Scientists at the university's Kosterlitz Centre said the switch controls the galanin gene.
科学家们说，虽然这次地震发生在其它大震之后，但没有超出正常的范围。
Nor was it outside the realm of normal, scientists say, even though it comes on the heels of other major earthquakes.
科学家们说研究表明，男性是否会产生移情反应取决于他人是否曾善待他。
The scientists said the research shows that empathic responses in men are shaped by the perceived fairness of others.
尽管科学家们说那只鞋塞满了草，像鞋楦一样来保持其形状，但它的确被人穿过。
While scientists say the shoe was stuffed with grass, acting like a shoe tree to hold its shape, it had been worn.
科学家们说，他们用古董设备生成的图像相当模糊，但是仍然令人惊叹。
The scientists wrote that the images they produced with the ancient machine were severely blurred-but still awe-inspiring.
村民们注意到近年来干旱时常发生，科学家们说这可能和天气变暖有关。
Villagers have noticed frequent droughts in recent years that scientists say may be linked to warming.
然而，美国和加拿大一些名牌大学的科学家们说，以下这些因素也一定要考虑在内。
However, the scientists from top U.S. and Canadian universities say that these other factors must be considered.
科学家们说，兰花的成功在于不拘泥于甚至分享传粉媒介，但对共生真菌保持专一。
The scientists say orchids became successful by changing or sharing pollinators, but staying loyal to fungi.
因为北得科他州立大学的科学家们说，信件的风格跟其内容一样，可以透露出些什么。
Because scientists at North Dakota State University say that the style of these missives may reveal as much as their content.
科学家们说，据称是地球上最古老最原始的鸟类的“始祖鸟”可能根本就不是一只鸟。
Archaeopteryx, supposedly the oldest and most primitive bird on Earth, might not have been a bird after all, scientists say.
但是，科学家们说，研究可以帮助我们更清楚地了解是什么让泰勒的美如此非同寻常。
But scientists say research has helped shed even more light on what made Taylor's beauty so rare.
如果人们不改变自己的生活方式，“那就需要另外一个星球，”科学家们说。
If people don't change their way of life, "another planet will be needed," said the scientists.
科学家们说，迄今为止发现的最大外行星是一颗奇特至极、在理论上不应该存在的行星。
The largest exoplanet ever discovered is also one of the strangest and theoretically should not even exist, scientists say.
参与这些实验的科学家们说，使用药物防止听力丧失的临床实验有可能会在十年内实现。
Scientists involved in the experiments say there could be therapeutic trials to prevent hearing loss using drugs within a decade.
科学家们说，年平均气温的升高造成了干旱、热浪、暴雨以及台风这类极端的天气状况。
The rise in yearly temperatures, the scientists say, contributes to extreme weather conditions like droughts, floods, heat waves, heavy precipitation and cyclones.
科学家们说，黄耆能够改善人体的免疫系统，但还不清楚是否能够给人体健康带来好处。
Scientists say astragalus boosts the immune system, but it isn't known if that translates to any health benefit.
科学家们说我们所持有的种族的概念已经非常深了，甚至比我们想象的还要深。
The scientists revealed that perception of race is shaped by prejudices that we already hold - and that racism runs deeper than we think.
去年在《幸福研究杂志》（荷兰）上刊登文章的科学家们说，这些回顾是让生活充实的关键。
Such reflection is key to living life to the fullest, say the scientists in a paper published last year in the Journal of Happiness Studies.
去年在《幸福研究杂志》（荷兰）上刊登文章的科学家们说，这些回顾是让生活充实的关键。
Such reflection is key to living life to the fullest, say the scientists in a paper published last year in the Journal of Happiness Studies.
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