backtrack

英 [ˈbæktræk]

美 [ˈbæktræk]

v.  原路返回; 折回; 折返; (屈于压力而)改变声明(或主张)，出尔反尔; 退缩

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

化学

BNC.21946 / COCA.17377

牛津词典

verb

• 原路返回；折回；折返
  to go back along the same route that you have just come along
• （屈于压力而）改变声明（或主张），出尔反尔；退缩
  to change an earlier statement, opinion or promise because of pressure from sb/sth

柯林斯词典

• VERB 改变（说法、决定等）；出尔反尔
  If youbacktrack ona statement or decision you have made, you do or say something that shows that you no longer agree with it or support it.
  1. The committee backtracked by scrapping the controversial bonus system...
     委员会改变主意，放弃了有争议的奖金制度。
  2. The finance minister backtracked on his decision.
     财政部长收回了他的决定。
• VERB 原路返回
  If youbacktrack, you go back along a path or route you have just used.
  1. Leonard jumped in his car and started backtracking...
     伦纳德跳进车里，开始原路折返。
  2. We had to backtrack to the corner and cross the street.
     我们不得不原路返回到拐角处过街。
• VERB 倒回（描述或解释内容）
  If youbacktrackin an account or explanation, you talk about things which happened before the ones you were previously talking about.
  1. Can we just backtrack a little bit and look at your primary and secondary education?
     我们能不能回过头来谈谈你的小学和中学教育？

英英释义

verb

• retrace one's course
  1. The hikers got into a storm and had to turn back
  Synonym:turn backdouble back

双语例句

• On the analysis of Kongming chess, proposes recursion and non-recursion algorithms based on backtrack for the issue, which works effectively.
  对孔明棋求解问题进行分析，提出了基于回溯思想的递归和非递归算法，运行结果表明了算法的有效性。
• We went the wrong way and had to backtrack till we got to the right turning.
  我们走错了路，所以不得不往回走直到走上正路。
• A true gentleman doesnt backtrack on his words, but walks the talk.
  一个真正的绅士是不会食言的，而是言出必行。
• We had to backtrack to the corner and cross the street.
  我们不得不原路返回到拐角处过街。
• Just knowing that this is hard, and having compassion for ourselves as we work through this process, can help us to stay the course when we feel the urge to backtrack.
  当我们想走回头路时，只要了解到这个过程很难，并且记得在这个过程中对自己慈悲些，就会很大程度上帮助我们坚持到底。
• This time round, we backtrack a little to advice more about the air intake filtering system.
  这一回，我们只能一点建议更多的油罐车进气过滤系统。
• It's no easy task-BenQ, an electronics company, expanded too fast and had to backtrack.
  这绝非易事。台湾电子公司明基（BenQ）就因扩张太快而不得不收缩业务。
• We got lost driving to Shunyi, so had to backtrack quite a lot until we finally found the correct road.
  我们在开往顺义的路上迷路了，所以我们不得不回头重走了好长一段，才找到正确的方向。
• If a mistake is later detected, then we must backtrack to the point of error and try another alternative. This is called backup.
  如果以后发现它是错误的，我们必须退回到点，再试另外的选择。这种方法称为回溯。
• We backtrack to here.
  我们回溯到这儿。