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单词 backtrack
释义
backtrack
verb[I]
uk
/ˈbæk.træk/us
/ˈbæk.træk/

backtrackverb[I](GO BACK)

to go back along apaththat you have justfollowed:
走回头路，原路返回
We went thewrongway and had to backtrack till we got to therightturning.我们走错了路，只好原路返回，直到找到正确的拐弯处。
SMART Vocabulary: related words and phrases
Returning to a place
  • call back
  • come
  • come back
  • darken
  • double back
  • get back
  • go
  • go back
  • huddle
  • huddled
  • join
  • reappear
  • reappearance
  • refoulement
  • regain
  • rejoin
  • reshore
  • return
  • revenant
  • turn(someone)back
See more results »

backtrackverb[I](CHANGE OPINION)

to say that you did notmeansomething you saidearlieror say that you havechangedyouropinion:
收回说法；改变意见
[+ speech]"Allright," he backtracked, "It'spossiblethat I wasmistaken."“好吧，”他改变了态度说道：“我可能是错了。”
Theofficerswereforcedto backtrackontheirstatements.这些军官被迫收回他们的声明。
Sherefusedto backtrackfromhercriticismsof theproposal.她拒绝收回对该提案的批评。
SMART Vocabulary: related words and phrases
Denying & contradicting
  • abnegate
  • abnegation
  • apparently
  • bubble
  • burstsomeone'sbubbleidiom
  • contradict
  • counter-argue
  • Dutchman
  • fly
  • fly in the face ofsomethingidiom
  • in the same breathidiom
  • oxymoronic
  • rebut
  • rebuttal
  • recantation
  • refutation
  • self-contradictory
  • speak
  • standsomethingonitsheadidiom
  • tergiversation
See more results »
(Definition ofbacktrackfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

backtrack| American Dictionary

backtrack
verb[I]
us
/ˈbækˌtræk/
to go back the same way you came, or toconsiderinformationagain:
We need to backtrack abitandexaminethehistoryof thisproblem.
If you backtrack from something youpreviouslysaid oragreedto do, youbegintostopsupportingit:
Thegovernmentbacktracked onplansthat would haveincreasedtaxes.
(Definition ofbacktrackfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofbacktrack

backtrack
Section 5 introduces conflict sets and our generic search algorithm, and recasts backtracking search in that framework.
From theCambridge English Corpus
The presence of the all/2 collector avoids the need for backtracking over multiple remote answers.
From theCambridge English Corpus
Chapter 6 improves naive backtracking using look-back schemes for backjumping and learning.
From theCambridge English Corpus
Unfortunately, the presence of non-deterministic strategies and rules limits its applicability, because backtracking requires access to structures that would otherwise be reused.
From theCambridge English Corpus
The failed attempt to establish this goal in the existing plan network supports expansion, failure, or backtracking as an option.
From theCambridge English Corpus
However, the system will add new preconditions rather than backtracking if an unsafe state is generated during synthesis.
From theCambridge English Corpus
Still, using the trail for storing both references which have to be reset upon backtracking and inter-block references has important disadvantages.
From theCambridge English Corpus
Profiling revealed that in this benchmark, upon backtracking and untrailing it is often needed to remove several cells at once from a certain remembered set.
From theCambridge English Corpus
14 again because backtracking does not remove the reason for the failure !.
From theCambridge English Corpus
By contrast, backtracking automata cannot be easily analyzed.
From theCambridge English Corpus
The other kind of error - incompleteness via infinite loops or backtracking failure - continues to be bothersome, of course: dependent types do not save us there.
From theCambridge English Corpus
Upon backtracking the registers that held these system variables are restored from the choicepoint.
From theCambridge English Corpus
If a sub-string matches the contextual restrictions, the corresponding operation applies without later backtracking.
From theCambridge English Corpus
Any feature structures and definite clause programs can be used to express the constraint, which may include backtracking, cut, negation-as-failure, assertion and any other operations.
From theCambridge English Corpus
In this case backtracking must take place to the most recent choice point either in clause selection or in unification.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/backtrack##
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更新时间：2025/2/10 20:52:11