orbita

例句：

1. 1.The spacecraft orbits the planet every day.
   宇宙飞船每天绕着行星运行。
2. 2.The satellite orbits the Earth at a constant altitude.
   卫星以恒定的高度绕地球运行。
3. 3.The orbit of the planet is determined by its gravitational pull.
   行星的轨道由其引力决定。