The difference between trace, track and trail

These three words mean: trace, track, and trail.

Trace means "some sign". no trace There is no sign.

Track track, footprint. keep track(of) Continue to understand the situation of (...)

Trail also means dragging. trail sth in/on/through trail V. track; drag... behind. N. A series of traces (such as a string of blood stains); a series of traces (including visible and smellable ones, such as ruts, animal odors); a row (car); a row (smoke)

track V. track. N. Road (path, trail, runway, driveway); a series of traces or traces (tracks must be used, and the smell cannot be described), the tracked line

trace V. pursue; trace back; trace back (trace back).

N. Relics; traces (results of the impact of events, such as traces left by war); traces