But the death toll, scientists now say, wasn't as high as previously thought.

然而，科学家现在声称，其实死亡人数并不像之前所想的那样多。

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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。

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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。

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But the scientists say the Chinese farmers have now had to use more insecticides to fight the mirids.

VOA: special.2010.05.25

Now scientists in Scotland say they may have found a new treatment.

VOA: special.2010.04.07

Climate scientists now say warming and cooling events during the past 10, 000 years brought about significant swings in rainfall and temperature in remarkably short periods.

CNN: Past may hold clues to climate's future

Climates were different in the distant past and now these scientists say new ones are emerging.

NPR: Warming Will Create Micro-Climates, Scientists Say

Other scientists say that 10 years could now become the standard for treatment.

BBC: Breast cancer