fall back onsth
—phrasal verbwithfallverbuk/fɔːl/us/fɑːl/fell|fallen
C2
to use something,especiallyaformoffinancialsupport, when other things havefailed
借助于;依赖,依靠
When thebusinessfailed, we had tofallback onoursavings.公司倒闭后,我们只得靠积蓄度日。
If Ilosemyjob, I'll have nothing tofallback on.我要是丢了工作,就什么指望都没有了。