及物动词
1. 举（步）折回;沿（原路）返回
If you retrace your steps or retrace your way, you return to the place you started from by going back along the same route.
1. reassemble mentally
e.g. reconstruct the events of 20 years ago
Synonym: reconstructconstruct
2. to go back over again
e.g. we retraced the route we took last summer
trace your path
Synonym: trace