sphere
柯林斯词典
1. N-COUNT A sphere is an object that is completely round in shape like a ball. 球体
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。
2. N-COUNT A sphere of activity or interest is a particular area of activity or interest. (活动、兴趣的) 领域
...the sphere of international politics. …国际政治领域。
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sphere /sfɪə/ (spheres)
剑桥词典
sphere noun [C] (ROUND OBJECT)
an object shaped like a round ball
球，圆球；球状物
Doctors have replaced the top of his hip bone with a metal sphere. 医生们用一个金属球替换了他的髋骨顶端。
sphere noun [C] (AREA)
a subject or area of knowledge , work , etc.（知识、工作等的）范围，领域，圈，界
the political sphere 政界
exchanges with other countries , particularly in cultural , scientific , and economic spheres 与其他国家的交流，特别是在文化、科学和经济领域 返回 sphere