hedge your bets
采取多种行动或策略，以降低风险或错误的可能性
口语·建议分散风险
英文释义
to take precautions or make alternative plans in order to reduce the risk or uncertainty of a situation
例句
I'll hedge my bets by applying to several colleges, just in case.
典故来源
源自赌博术语，hedge指同时下注多个选项以降低风险，后用于一般决策。