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geometry 几何 a solid figure that is completely round, with every point on its surface at an equal distance from the centre 球；球体；球形 
The Earth is not a perfect sphere. 地球并不是一个完全的球体。
any object that is completely round, for example a ball 圆球；球状物 an area of activity, influence or interest; a particular section of society 范围；领域；阶层；界 the political sphere 政界 This area was formerly within the sphere of influence of the US. 这一地区先前属于美国的势力范围。 He and I moved in totally different social spheres. 我和他进入了完全不同的社会圈子。
Extra ExamplesRome's sphere of influence extended across Europe, North Africa and the Middle East. 罗马的势力范围遍及欧洲、北非以及中东地区。 Rome's sphere of influence extended as far as Scotland. 罗马的势力范围扩张至苏格兰。 His work is little known outside the academic sphere. 他的成果在学术界以外鲜为人知。 In the novel, men and women enjoy separate spheres of action. 在这部小说里，男人和女人喜欢完全不同的行为。 The matter is outside my sphere of responsibility. 这件事不归我负责。 The region is within the Russian sphere of influence. 这一地区在俄罗斯的势力范围内。 Debate should be confined to the sphere of economics rather than politics. 辩论应限定在经济领域而不是政治领域。 The government had control over all spheres of life. 政府控制了生活的所有领域。
Oxford Collocations Dictionaryadjective- wider
- separate
- academic
- …
- in somebody’s/the sphere
- within somebody’s/the sphere
- outside somebody’s/the sphere
- …
- a sphere of activity
- a sphere of influence
- a sphere of life
- …
- -sphere
(in nouns 构成名词 a region that surrounds a planet, especially the earth （包围地球等的大气的）层 ionosphere 电离层 atmosphere 大气层
Word OriginMiddle English: from Old French espere, from late Latin sphera, earlier sphaera, from Greek sphaira ‘ball’.