吃透英语课本，提升在校竞争力
n. 球体；范围
现在分词：sphering
第三人称单数：spheres
过去式：sphered
过去分词：sphered
复数：spheres
television’s increasing role in the political sphere
电视在政治领域中越来越重要的作用
Women have often been excluded from positions of power in the public sphere.
女性常常被排除在公共领域的实权职位之外。
Because the earth spins, it is not a perfect sphere.
因为地球旋转，所以它不是个完完全全的球体。
n.范围；[数]球体
extent
boundary
region
scope
spectrum
territory
range
vt.包围；放入球内；使…成球形
case
invest
