| 单词 | fall-back |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔string〕She's keeping you on a string, using you as a fall-back in case something happens with her current man.她将你玩弄于股掌之间, 一旦现任男人出了问题就拿你当后备。外研社新世纪 |
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