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。
• Doctors sometimes fall back on old cures.
  有时医生们求助于老的疗法。
• We all need a nest egg to fall back on, but not while wearing a good suit.
  我们都需要有个留窝蛋当退路，但不是在穿着一身好套装的时候。
• I don't even have that to fall back on.
  我连这个也不能依靠了。
• At least you have your mother to fall back on.
  至少你可以依靠你的母亲。
• Fall back on old friends in time of need.
  在需要时求助于老朋友们。
• If we fall short of seeds and nuts, we'll need these berries to fall back on.
  要是种子和坚果不够的话，我们还要靠这些莓果过冬。
• 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。
• It's always useful to have something to fall back on.
  有点依靠的东西总是有用的。
• 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。