[guǐ dào]
（供火车、电车等行驶的由条形钢材铺成的路线） track; pathway; rail; runway; circle; railway
underground railway track
地铁轨道
tram road
矿车轨道
You'll find your train at track 8.
你将在8号轨道找到你的列车。
（天体在宇宙间运行的路线） orbit; trajectory
the orbit of Mars
火星轨道
put a man-made earth satellite into orbit
把人造地球卫星送入轨道
The satellite was launched into orbit around the moon.
卫星被射入环绕月球的轨道。
（规则； 范围） course; path
leave the path of righteousness; err from the right path; take a wrong path
偏离轨道
Production has already been put on the right track.
生产已经走上轨道。