fallback

英 [ˈfɔːlbæk]

美 [ˈfɔːlbæk]

n.  应变计划; 退路

复数：fallbacks　

计算机

BNC.48596 / COCA.23870

牛津词典

noun

• 应变计划；退路
  a plan or course of action that is ready to be used in an emergency if other things fail
  1. What's our fallback if they don't come up with the money?
     要是他们拿不出钱，我们如何应变？
  2. We need a fallback position if they won't do the job.
     如果他们不干这个工作，我们就需要一个应变的方案。

柯林斯词典

• ADJ (计划失败或发生意外时)退守的，应变的，备选的
  Someone'sfallbackposition is what they will do if their plans do not succeed, or if something unexpected happens.
  1. Yesterday's vote itself was a retreat from an earlier fallback position.
     昨天的投票本身就是放弃先前所留退路的做法。

英英释义

noun

• to break off a military action with an enemy
  Synonym:disengagementpullout

双语例句

• This is our fallback position, here.
  这里是我们的后备阵地。
• The problem here is that there is no standard HTML fallback to navigate to one of the available pages.
  这里的问题是，没有一个标准HTML回退操作来导航到一个可用页面。
• Below the fallback resources are the resources for any neutral cultures.
  后备资源之下是用于任何非特定区域性的资源。
• The downside of this method is that two reboots are needed in case of a fallback.
  这个方法的缺点是回滚时需要两个启动方式。
• In international applications the recommended method of selecting Fonts is to use font fallback wherever possible.
  在国际化应用程序中，选择字体的推荐方法是尽可能使用字体后备。
• However, Beijing has a fallback plan.
  不过，北京方面有一个后备计划。
• I've assumed that if you have access to a wireless LAN, you also have access to a wired network as a fallback.
  我假定你可以访问无线局域网，作为应急办法你也能访问有线网络。
• All right, we're going to the fallback.
  好吧，我们准备撤退。
• She said it was time you found a fallback.
  她说你应该给自己找条退路了。
• The second instance is the default or fallback value if the variable isn't defined in the properties file.
  如果属性文件中没有定义变量，那么第二个实例是默认值或回退值。