文中的Write off 指的是“勾销债款”，如write off a debt；write off 还可表示“取消”，例如：We'll just have to write off the plan if we can't find the money for it.（这项计划如果筹不到款就得取消。）名词write-off可用来指“报废物”、会计上的“注销项款”等。