sphere

any spherically shaped artifact

任何球形的人造物

a particular aspect of life or activity

生活或活动的特定方面

he was less in an important sector of his life

他在生活中的一个重要方面很无助

sector

the apparent suce of the imaginary sphere on which celestial bodies appear to be projected

假想球体的表面，天体似乎被投射在上面

celestial sphere

empyrean

firmament

heavens

vault of heaven

welkin

the geographical area in which one nation is very influential

一个国家有很大影响力的地理区域

sphere of influence

a three-dimensional closed suce such that ry point on the suce is equidistant from the center

一种三维封闭曲面，使曲面上的每一点都与中心等距

a solid figure bounded by a spherical suce (including the space it encloses)

以球面为界的实心图形（包括它所包围的空间）

a particular environment or walk of life

特殊的环境或生活方式

his social sphere is limited

他的社交范围有限

it was a closed area of employment

那是一个封闭的工作区

he's out of my orbit

他不在我的轨道上

domain

area

orbit

field

arena