ring-fence
verb [ T ] UK (also ring fence) uk/ˈrɪŋˌfens/ us/ˈrɪŋˌfens/
finance & economics, business specialized确保一笔资金受到保护用于专门用途;保证资金不会被挪作他用
to make sure that a sum of money is protected and only used for a particular purpose; to protect a particular area of spending so that there is no reduction in the amount spent on it
Over £500 million was ring-fenced for improvements to the transport system. 有一笔超过5亿英镑的资金被保护起来，专门用来改善公共交通系统。
The following ring-fenced areas account for around 46 percent of total departmental spending. 以下受保护的领域约占整个部门开支的46%。
ring-fence
noun [ C usually singular ] UK (also ring fence) uk/ˈrɪŋˌfens/ us/ˈrɪŋˌfens/
finance & economics, business specialized资金不会被挪作他用的保证
something that protects a sum of money or area of spending so that it cannot be reduced or is kept separate from other amounts or areas
The company established a ring-fence around losses dating from 2012. 从2012年开始，公司就保证针对亏损的资金不被挪作他用。