It does nothing to reduce our fossil fuel usage (many scientists say that it increases usage) and it drives up food prices.

这不仅没有减少我们的石化燃料的使用(一些科学家说这增加了使用量)，而且推高了食品的价格。

youdao

Many scientists say this figure is too high and allows fishermen to land two or even three fins for every shark carcass they land.

许多科学家说这一数字过高，使渔民能在每条捕捞到的鲨鱼身上割下两个甚至三个鱼翅。

youdao

Many scientists say that to avoid a doubling of carbon dioxide concentrations, energy efficiency must be increased drastically, and soon.

很多科学家表示，要避免二氧化碳浓度成倍增长，能源效率必须迅速且有力地增加。

youdao

Scientists at the University of Tasmania say the urchins are wrecking areas in which many fish and shellfish grow.

VOA: special.2009.08.25

Even today, many experts say women scientists often are not treated fairly.

VOA: special.2009.05.13

Scientists say there are many reasons for this.

VOA: special.2010.03.02

President Reagan was diagnosed with Alzheimer's disease after leaving office -- an affliction that many scientists say eventually may be cured with the help of embryonic stem cell research.

CNN: Obama overturns Bush policy on stem cells

They also blame it for some of the health problems seen in southern Iraq, though many scientists say there is no known mechanism by which DU could have caused the damage.

BBC: UK to aid Iraq DU removal

Many climate scientists say their biggest fear is that warming could melt the Arctic permafrost which stretches for thousands of miles across Alaska, Canada, and Siberia.

NEWYORKER: The Climate Fixers