backtrackvi.
英 'bæktræk | 美 'bæktræk
中文vi. [计] 回溯；由原路返回；放弃\nvt. 追踪；循迹调查
[计] 回溯；由原路返回；放弃
vt. 追踪；循迹调查
词根词源
backtrack (v.)"retrace one\\'s steps," figuratively, by 1896, from literal sense, with reference to hunted foxes, from back (adv.) + track (v.). Related: Backtracked; backtracking.
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