In fact, most biofuels are still based on ethanol.
事实上，大多数生物燃料仍然以乙醇为基础。
New research on transportation biofuels is already under way.
关于交通生物燃料的新研究已经在进行中。
生物燃料提供了许多利益。
生物燃料这条路恐怕走不通。
We have a big need for biofuels.
我们对生物燃料有巨大的需求。
生物燃料回来了。
Next it will test biofuels in ship turbines.
下一步它将在轮船涡轮上测试生物燃料。
Biofuels, meanwhile, will remain controversial.
同时，生物燃料自身也是有争议的。
First of all, we need more research on biofuels.
首先，我们需要对生物燃料进行更多的研究。
Diouf said biofuels still compete for food crops.
迪乌夫说，目前仍然需要大量粮食作物来生产生物燃料。
But it is not just biofuels that are to blame.
不过，出问题的还不只是生质燃料而已。
The rise of biofuels, like ethanol made from corn.
生物燃料的使用增多，如用玉米生产乙醇。
It will also need to compete with other biofuels crops.
这种作物还将要与其他的生物燃料作物相竞争。
On the face of it, biofuels look like a great solution.
也许从表面上看，生物燃料似是一个不错的解决之道。
So biofuels are both a challenge and an opportunity.
因此，生物燃料挑战与机遇并存。
First-generation biofuels are a victim of their own success.
第一代的自我燃料是其自身成功的受害者。
Over the long run, the future for biofuels may be looking up.
从长远角度看，生物燃料的未来可能正在改善。
The US's new love affair with biofuels is likely to intensify.
美国对生物燃料的全新眷爱可能更为强烈。
Biofuels can be made from anything that is, or ever was, a plant.
任何植物，或者任何曾经是植物的东西，都可以用来合成生物燃料。
The American navy, for its part, is placing its faith in biofuels.
美国海军方面则将希望寄托在生物燃料上。
Rising global demand for food and biofuels adds even more to the heat.
全球对食品和生物燃料的需求持续增加则更是火上浇油。
Farmers have bought the idea that they can make money out of biofuels.
农场主已经相信生物燃料也能赚钱。
Biofuels are similar, except that they're made from plants grown today.
而生物燃料与之不同之处则在于它们是由现今种植的植物所产生的。
Tar sands and biofuels represent only a small part of global energy use.
沥青砂及生物燃料仅占全球能源消耗的一小部分。
This year biofuels will take a third of America's (record) maize harvest.
今年生物燃料将消耗美国1/3的玉米收成。
The research subjects include clean coal, fluid mechanics and biofuels.
已确定的课题包括清洁煤、液压动力学和生物燃料。
Global production of biofuels is growing steadily and will continue to do so.
全球的生物燃料生产正在稳步增加，而且还将继续增加。
This year biofuels will take a third of Americas (record) maize harvest.
今年生物燃料将消耗美国创纪录的玉米收成的三分之一。
This year biofuels will take a third of Americas (record) maize harvest.
今年生物燃料将消耗美国创纪录的玉米收成的三分之一。
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