| 单词 | underpin | 
| 释义 | underpinverb  un·der·pin  ˌən-dər-ˈpin     underpinned; underpinning; underpins    transitive verb 1    : support, substantiate  underpin a thesis with evidence   2    : to form part of, strengthen, or replace the foundation of  underpin a structure  underpin a sagging building   underpin verbas in to sustain   to hold up or serve as a foundation for the central beliefs that underpin a free society   Synonyms & Similar Words Relevance     
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