n. 1.球；球体，圆体，球面，球形。 2.天体；星，行星。 3.地球仪，天体仪。 4.【天文学】天球；天空。 5.(活动)范围，领域；本分，职分。 6.身分，地位。 7.〔美俚〕棒球。 短语和例子 the geometry of spheres 球面几何学。 a sphere of fortress 要塞地带。 a sphere of influence 势力范围。 I take up a second foreign language to widen my sphere of knowledge. 我选修一种第二外语来扩大我的知识面。 be beyond [out of] one's sphere 在本人的(某种)范围外，越分。 be in one's sphere 在本人的(某种)范围内，不越分。 remain in one's proper sphere 守本分，安分守己。 vt. 1.使成球形。 2.把…放在球内；使处于天体之间。 3.包围，围住。 4.〔诗〕捧上天；极力赞扬。 短语和例子 sphere geometry 球面几何学。 a sphere triangle 球面[弧]三角形。
any spherically shaped artifact
a particular aspect of life or activity; "he was helpless in an important sector of his life" 同义词：sector,
the apparent surface of the imaginary sphere on which celestial bodies appear to be projected 同义词：celestial sphere, empyrean, firmament, heavens, vault of heaven, welkin,
the geographical area in which one nation is very influential 同义词：sphere of influence,
a three-dimensional closed surface such that every point on the surface is equidistant from the center
a solid figure bounded by a spherical surface (including the space it encloses)
a particular environment or walk of life; "his social sphere is limited"; "it was a closed area of employment"; "he''s out of my orbit" 同义词：domain, area, orbit, field, arena,
例句与用法
1.
The earth is a spheroid and not a sphere . 地球是一个椭球而非球体。
2.
Here a new sphere was to open to him . 这里将要对他开辟一个新的活动领域。
3.
The sphere is fabricated by compression . 小球是用挤压制成的。
4.
The gas escapes from the sphere of the reaction . 气体产物从反应体系中逸出。
5.
He drew a world map on a sphere . 他在球上面画一幅世界地图。
6.
Lines pierce the sphere in points . 直线与球面相交为点。
7.
In this way the sphere is transformed into an ellipsoid . 于是球体变成为椭球体。
8.
The sphere in which she moves is much above his . 她来往活动的圈子比他高超多了。
9.
Direction on the sphere is measured by azimuths . 地球上的方向是通过方位角测定的。
10.
He was the first person to believe that the earth was a sphere . 他最早提出地球是一个球体。
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