摘要：例：If you quit your job on impulse without a backup, I'll cover the mess—we can live on my salary until you find a new one. (要是你没找好

“兜底”核心是“承担最终后果、提供终极保障”

一、日常表达

cover the mess: 为对方搞砸的事收拾烂摊子、担后果

例：If you quit your job on impulse without a backup, I'll cover the mess—we can live on my salary until you find a new one. (要是你没找好下家就冲动辞职，我来兜底，你找新工作期间咱们靠我的工资过。)

take the fall for...: 为对方的过错扛责任

例：Don't fear admitting you messed up the travel booking—I'll take the fall for you and handle the refund. (别不敢承认订旅行出错了，我来为你兜底，去处理退款。)

bail sb. out (of trouble): 为对方的实际困境（如财务、麻烦）提供最终解决方案

例：If your startup runs into trouble, your dad and I will bail you out—don't hold back. (要是你创业遇困难，我和你爸会给你兜底，别束手束脚。)

be one's safety net: 做对方的终极保障，失败后提供依靠，贴合“兜底”的后路属性

例：Go start that small online shop— I'll be your safety net. If it doesn't work, we'll figure it out together. (去开你想做的小网店吧，我来兜底。就算没成，咱们再一起想办法。)

cover（v.）: 承担生活开销责任，解决后顾之忧

例：Mom said, "Chase your dream—I'll cover all the family expenses." (妈妈说：“去追你的梦想，家里开销我来兜底。”)

二、专业场景

backstop（v./n.）: 金融政策领域“作为最后防线兜底”

例：The central bank backstopped the financial system during the crisis, keeping institutions steady. (央行在危机期间为金融系统兜底，保障机构平稳运转。)

underwrite（v.）: 金融领域“为风险债务兜底承担”

例：The bank agreed to underwrite the company's bond issuance, so it could expand without worry. (银行同意为公司债券发行兜底，使其可放心扩张。)

assume liability: 法律、商业领域“承担法定最终兜底责任”

take responsibility (for)，承担责任和结果；guarantee（v.）保证，确保。特定情境可表兜底。

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来源：风华教育