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

• When the business failed, we had to fall back on our savings.
  生意失败了，我们只得靠积蓄过活。
• 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。
• 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。
• 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。
• At least you have your mother to fall back on.
  至少你可以依靠你的母亲。
• Doctors sometimes fall back on old cures.
  有时医生们求助于老的疗法。
• 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。
• 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。
• He has his rich parents to fall back on.
  他可以依靠他有钱的父母。
• 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。