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

• She could fall back on her aunt.
  她可以依靠她的姑妈。
• I like to keep some money in a savings account to fall back on in an emergency.
  我想在活期存单中存一些钱以便在紧急时有个依靠。
• 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。
• 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。
• Don't fall back on others but do the job yourself.
  别依赖别人，你自己干。
• 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。
• 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。
• We had to fall back on dried milk as fresh milk wasn't available.
  因为找不到鲜奶，我们不得已使用了奶粉。
• Fall back on old friends in time of need.
  在需要时求助于老朋友们。
• I don't even have that to fall back on.
  我连这个也不能依靠了。