1.（天体运行的）轨道；（人造物体如卫星﹑ 航天器等飞行的）轨道
2. 人生道路；活动范围；生活圈子
3.【解剖学】眼窝，眼眶
4.【动物学】眼睑；（鸟或昆虫的）复眼缘的颊部
5.【物理学】电子轨道
6.【航空学】圆圈飞行
及物动词：
1. 环绕…的轨道运行
2. 使进入轨道
不及物动词：
1. 沿轨道运行
2. 作圆圈飞行
3. 进入轨道；达到运行速度
词形变化
- 形容词 orbital
- 时态 orbited，orbiting，orbits
- move in an orbit
- the (usually elliptical) path described by one celestial body in its revolution about another
- the path of an electron around the nucleus of an atom
- an area in which something acts or operates or has power or control:
- a particular environment or walk of life
- the bony cavity in the skull containing the eyeball