backtrack

vi.

走原路；由原路返回；改变主意；取消诺言

vt.

追踪；循迹调查；

过去式：backtracked过去分词：backtracked现在分词：backtracking第三人称单数：backtracks

1. This will often cause them to backtrack.
   这往往会导致他们走回头路。
2. The path suddenly disappeared and we had to backtrack.
   小路突然消失了，我们只得沿原路折回。
3. A spate of negative stories and the government may backtrack.
   一旦负面消息大量出现政府就会走回头路。

BACKTRACK
BACKTRACK
Backtrack
Backtrack programming. J ACM
Backtrack programming techniques
A Sufficient Condition for Backtrack-Free Search
Probe Backtrack Search for Minimal Perturbation in Dynamic Scheduling
Estimating the efficiency of backtrack programs
A sufficient condition for backtrack-bounded search
Bounds on backtrack algorithms for listing cycles, paths and spanning trees