fall back on something

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

fall back on sth phrasal verb [ fell back on sth fallen back on sth fallen back on sth falls back on sth falling back on sth ]
to use something for help because no other choice is available
• When the business failed, we had to fall back on our savings.
• If I lose my job, I'll have nothing to fall back on.
Thesaurus⁺: ↑Using and misusing
Main entry: fall_{phrasal verb}