1. Looking beyond the 10-year period, the botanists estimate that some 3,000 native plant species may become extinct in the foreseeable future — more than 10 percent of the approximately 25,000 species of plants in the United States.
【译文】 在展望10年后的情况时植物学家们估计,在未来可预见到的时间内, 3 000种本地植物—...