fall back on

英 [fɔːl bæk ɒn]

美 [fɔːl bæk ɑːn]

（其他方法行不通时）转而做，转而使用，转而依靠

柯林斯词典

• PHRASAL VERB (其他方法行不通时)转而做，转而使用，转而依靠
  If youfall back onsomething, you do it or use it after other things have failed.
  1. Unable to defeat him by logical discussion, she fell back on her old habit of criticizing his speech...
     由于在条理上说不过他，她便转而重施故技，抓住他的演讲不放。
  2. When necessary, instinct is the most reliable resource you can fall back on.
     必要时，最保险的办法就是凭直觉判断。

双语例句

• If these new methods don't work, we'll have to fall back on our old system.
  如果这些新方法不奏效，我们不得不依靠我们的旧系统了。
• The country was in possession of the bosses and the emigrant and decent people had to fall back on sport or culture.
  现在国家掌握在大老板和侨民手里，体面人物不得不退回去搞体育文化。
• He has her support to fall back on when the going gets tough
  他在进展困难的时候可以求助于她。
• Fall back on old friends in time of need.
  在需要时求助于老朋友们。
• The public door ACL does not exist, so you fall back on the ACL of the parent.
  公共门ACL不存在，因此，您需要后退到上一级ACL。
• Doctors sometimes fall back on old cures.
  有时医生们求助于老的疗法。
• In an emergency we can fall back on our savings.
  在情况紧急时，我们可以依靠我们的积蓄。
• She could fall back on her aunt.
  她可以依靠她的姑妈。
• At least you have your mother to fall back on.
  至少你可以依靠你的母亲。
• She's completely homeless-at least I have my parents to fall back on.
  她是真得无家可归-至少我还有父母可依靠。