n. a pair of parallel rails providing a runway for wheels
n. an endless metal belt on which tracked vehicles move over the ground
n. (computer science) one of the circular magnetic paths on a magnetic disk that serve as a guide for writing and reading data
n. a groove on a phonograph recording
n. 轨迹, 足迹, 径迹, 小道, 轨道, 磁轨, 途径
vt. 循路而行, 追踪, 通过, 用纤拉
vi. 追踪, 留下足迹, 沿轨道运行
[计] 跟踪