备用金用英语怎么说

"Reserve fund" 或 "reserve capital" 是备用金在英语中的常用说法。

备用金是一种公司或组织为了应对意外事件或未来需求而储存的资金。它可以用于支付突发事件或其他紧急费用，也可以用于投资或改善公司的财务状况。

例句：

"The company has set aside a reserve fund to cover any potential losses from the project" (公司已经拨出备用金来涵盖项目可能的损失)
"The city council has decided to use some of the reserve fund for the construction of a new park" (市议会已经决定使用部分备用金来建造一个新公园)
"The company's reserve fund is not sufficient to cover the cost of the emergency repairs" (公司的备用金不足以支付紧急维修费用)