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backtrack (v.)
[backtrack 词源字典]
"retrace one's steps," figuratively, by 1896, from literal sense, with reference to hunted foxes, from
back
(adv.) +
track
(v.). Related:
Backtracked
;
backtracking
.
[backtrack etymology, backtrack origin, 英语词源]
[backtrack 词源字典]