backtrack
/ˈbæktræk/verb
1
- no obj. retrace one's steps（由原路）退回去：
Marilyn backtracked and went down into the basement
玛里琳退回去, 走到地下室
figurative 〈喻〉to backtrack a little, the case is a complex one.
退一步看, 这个案子很复杂。
1.1
- reverse one's previous position or opinion出尔反尔; 撤回：
the unions have had to backtrack on their demands.
工会不得不撤回他们先前的要求。
2
- with obj. chiefly US pursue, trace, or monitor〈主美〉跟踪; 监视：
he was able to backtrack the buck to a ridge nearby.
他设法跟踪那雄鹿到附近的一个山脊。