Biological nitrogen fixation (BNF), which provides all the plants on the globe with 75% of fixed nitrogen, is one of the important projects in life science.
生物固氮为全球的植物提供75%的氮素,是生命科学中的重大课题。
A wind rose in the southeast, all the plants on the dunes swayed, and the white sand clouds that had gathered finder the sun moved into the Mangos. A bad storm was on its way.
那股聚集在太阳下边的白色烟尘,已经向这边移动过来,驰进了莽古斯沙漠,那是一股强烈的风暴。
Low Till Agriculture leaves much or all the soil and remains of plants on the ground.
低耕农业在地面上留下许多或全部土壤,以及植物残体。
So economically it meant more-- it made more sense to eat meat under those circumstances, but of course the meat didn't exist in all places of the world, so some people were dependent on plants.
因此,从经济角度看,在那样的环境中,食肉更加合理,当然肉类并不是世界各地到处都有,因此,有些人们就依赖于农作物
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