the underestimate of the grassland acreage
对草原面积的低估
That’s only a small share of the total acreage that could benefit, about half a million acres in all, so it will be vital to prioritize areas at greatest risk of fire or drought.
这仅仅是可能受益的总面积的一小部分，总计约有50万英亩，因此必须优先治理那些最易发生火灾或干旱的区域。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。