backtracking

英 [ˈbæktrækɪŋ]

美 [ˈbæktrækɪŋ]

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
backtrack的现在分词

现在分词：backtracking　

计算机

COCA.43330

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？

双语例句

• Each time the regex finds an intermediate tag and exits a lookahead, it throws away all backtracking positions from within the lookahead.
  正则表达式每次找到一个中间标签就退出一个前瞻，它在前瞻过程中丢弃所有回溯位置。
• This next example shows how backtracking works with repetition quantifiers.
  下一个例子显示了带重复量词的回溯。
• Algorithm for backtracking control strategies
  回溯控制策略的算法
• The Bad: Action elements are sometimes poorly implemented with lots of backtracking; characters can level unevenly.
  缺点：（戏的）作规则有时候在许多回溯进程上会执行的不彻底（翻译，需要懂行的、过的朋友指正）角色的等级不平衡。
• For example, top-down parsers are guaranteed to find every possible production, but can be extremely slow because of frequence ( exponention order) backtracking.
  例如，top-down解析器可以确保找到每一个可能的产品，但可能会非常慢，因为要频繁地（指数级）进行回溯。
• Backtracking techniques can be encoded by fairly short solution programs.
  回溯演算法可以写成很短的解题程式。
• The engine will discard all backtracking positions.
  引擎会忽略所有的回溯位置。
• Of course, the planet really isn't backtracking; it just looks as though it is.
  当然，它并不是真的倒退运行了，只是看起来如此而已。
• Layering, layouts, backtracking, and styling are all trivial in Seaside.
  分层、布局、回溯和样式在Seaside中是家常便饭。
• However, backtracking is computationally expensive and can easily get out of hand if you're not careful.
  然而，回溯计算代价昂贵，如果你不够小心的话容易失控。