词典释义：
a round solid figure, or its surface, with every point on its surface equidistant from its center
圆形实心体，球体；球面。
an object having this shape; a ball or globe
球体物；球；地球。
a globe representing the earth
地球仪。
〈主诗／文〉 天体。
〈诗／文〉 苍穹，天，天空。
each of a series of revolving concentrically arranged spherical shells in which celestial bodies were formerly thought to be set in a fixed relationship
天体外壳（指一系列旋转着的同心圆球形壳体之一，旧时认为各天体以某种固定的相互关系存在于其中）。
an area of activity, interest, or expertise; a section of society or an aspect of life distinguished and unified by a particular characteristic
（活动、兴趣、专业知识的）范围，领域；社会阶层
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political reforms to match those in the economic sphere. 与经济领域的改革相配合的政治改革。
〈古〉 将…封入球体中。
form into a rounded or perfect whole
形成球体；形成完美的整体。
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music （或harmony ）of the spheres the natural harmonic tones supposedly produced by the movement of the celestial spheres or the bodies fixed in them 天体音乐（想象中天球运行时所产生的自然音乐） -
sphere of influence （或interest ） a country or area in which another country has power to affect developments though it has no formal authority 势力范围，利益范围 -
a field or area in which an individual or organization has power to affect events and developments 个人或组织能对之施加重大影响的领域（或范围）
"Middle English： from Old French
