n. 轮胎；磁道；轨道（track的复数）

n a line or route along which something travels or moves

n evidence pointing to a possible solution

n a pair of parallel rails providing a runway for wheels

n a course over which races are run

n a distinct selection of music from a recording or a compact disc

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 a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll

n any road or path affording passage especially a rough one

n the act of participating in an athletic competition involving running on a track

v carry on the feet and deposit

v observe or plot the moving path of something

v go after with the intent to catch

v travel across or pass over

v make tracks upon