Scientists now say that each cell of a leaf contains the genetic pattern for the entire forest.
科学家们现在认为，树叶的每一个细胞内都包含有整座森林的遗传模式。
A group of scientists now say pollution is tainting the molecular build-up that causes a flower to smell so sweet.
一组科学家称目前的污染正在改变分子构成，造成花儿闻起来是甜的。
Stammering has long been recognised to run in families, but scientists now say they have identified three genes which may cause the problem in some people.
口吃一直被认为是家族遗传疾病，科学家终于找到了三种可能造成某些人出现口吃的基因。
Spending hours a day sitting at a desk is known to have consequences for your health but, scientists now say just five-minute walking stints could counteract some of the risks.
众所周知，一天在桌子前坐上数小时肯定不利于健康——但最近科学家发现，哪怕只是短短五分钟的步行运动也能抵消部分消极影响。
Spending hours a day sitting at a desk is known to have consequences for your health but, scientists now say just five-minute walking stints 1 could counteract 2 some of the risks.
众所周知，一天在桌子前坐上数小时肯定不利于健康——但最近科学家发现，哪怕只是短短五分钟的步行运动也能抵消部分消极影响。
And next time you stop to smell the roses, they could be less fragrant. A group of scientists now say pollution is tainting the molecular build-up that causes a flower to smell so sweet.
下次你驻足闻玫瑰花味时，它可能没那么香了，科学家们说是因为污染破坏了使花朵闻起来香甜的分子结构。
Here are some things that scientists say are most likely to happen in 10 to 30 years from now, according to the BBC.
根据 BBC 的报道，以下是科学家所言未来十到三十年内最可能出现的东西。
The scientists - from the US, UK and Germany - now say they have proved the case.
现在来自美国、英国和德国的科学家说他们已经证实了该推论。
Scientists now use them to measure the climate in areas that would have been impractically small when sensors were more costly-say under individual plants rather than in a thicket.
现在科学家利用它们来测量某一范围的气候——比方说个别植物下的气候而不是灌木丛里的气候。
But now scientists say we can discern a hint of dinosaur movement -from ostriches.
不过现在，科学家们声称，我们可以从鸵鸟身上来探索恐龙运动方式的蛛丝马迹。
The global thermostat can't be turned down quickly once it's been turned up, so scientists say we need to proceed with more caution right now.
全球温度一旦升高将不能被迅速降低，因此科学家们认为我们需要更加谨慎从事。
About a billion years from now, some scientists say, the sun will be too bright for comfort, and our formerly hospitable planet will no longer be able to support life.
一些科学家声称，再过10亿年，太阳会变的太过灼热明亮，地球也将不再适合生命繁衍生息。
Now scientists say that by separating our heads from our bodies, the neck gave our brains a leg up in evolution.
现在科学家宣称脖子通过将我们的头部从躯干上分离开，给大脑的进化助了一臂之力。
Only 12% of the region is now formally protected, well below the 50% scientists say is necessary to save its ecosystem.
如今只有12%的地区受到正式保护，远低于科学家呼吁的至少要保护此地生态系统的50%。
But now, scientists say that meditators like my husband may be benefiting from changes in their brains.
但现在，科学家们说冥想者可能会受益于他们大脑的变化。
Or to rest your head. Now scientists say that by separating our heads from our bodies, the neck gave our brains a leg up in evolution.
现在科学家宣称脖子通过将我们的头部从躯干上分离开，给大脑的进化助了一臂之力。
Now scientists at the College of Wooster in Ohio say that you might have had a skill you didn't realize: the uncanny ability to hear a bully coming.
不过俄亥俄伍斯特大学的科学家们称：你可能没有意识到自己的超能力所在，那就是更灵敏的听觉。
Scientists who predicted a few years ago that Arctic summers could be ice-free by 2013 now say summer sea ice will probably be gone in this decade.
科学家几年前就预言，北极夏日冰川到2013年时将会有大量漂浮冰面，这个十年间，此种情形将日益加剧。
Scientists say the ability of a parent to shape a child’s health may well be the biggest advance 25 years from now.
科学家称，未来25年最大的进步莫过于父母能设定孩子的健康状况。
Now scientists say they have uncovered the key to staying close and it appears to be different for men and women.
现在科学家说，他们已经发现了保持亲密的诀窍—但这对于男人和女人来说似乎是不同的。
Scientists say they now have a near-perfect picture of the genetic events that cause breast cancer.
科学家们说，他们现在对引起乳腺癌的基因事件有了近乎完美的认识。
About 1.1 billion years ago, what are now El Paso, Texas, and Antarctica appear to have existed side by side, scientists say.
科学家说，大约11亿年前，现在的德州埃尔帕索与南极好象是紧挨着的。
Now, scientists in Switzerland are developing virtual reality technologies to recreate crimes scenes. The scientists say these computer-made images can be used for quality recreations of events.
现在，瑞士科学家正在开发虚拟现实技术来重建犯罪现场。科学家们表示，这些电脑制作的图像可以用于事件的高质量还原。
Now scientists say they actually have been able to get rid of one specific fearful memory in a number of people by using a common blood-pressure drug.
如今，科学家们表示，通过一种普通的血压控制药物，他们真的可以帮一部分人消除某一段特定的恐惧记忆。
The planet Mars has gone through an ice age and is now warming up, scientists say.
科学家表示，火星已经脱离了冰河时代，现在正在升温。
Scientists used to say that enormous quakes occur every 250-450 years along the southern San Andreas. They now think the average is every 88 years.
科学家过去认为在SanAndreas断层南部每250年到450年会发生一次巨型地震，而现在他们觉得平均88年就会发生一次。
China is now the world's biggest emitter of greenhouse gases from burning fossil fuels and human activities that scientists say are causing global warming.
如今中国是全球最大的温室气体排放国。科学家们表示，源自化石燃料燃烧和人类活动的温室气体排放，正引起全球变暖。
China is now the world's biggest emitter of greenhouse gases from burning fossil fuels and human activities that scientists say are causing global warming.
如今中国是全球最大的温室气体排放国。科学家们表示，源自化石燃料燃烧和人类活动的温室气体排放，正引起全球变暖。
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