out of an abundance of caution

问题描述:

out of an abundance of caution
出现在bbc一篇新闻里,说的是美国关掉使领馆之后又警告公民立即离开也门的事情.
原句:The US earlier said the closures in North Africa and the Middle East were "out of an abundance of caution".
(closure指关掉使领馆这件事)

指的是“出于高度谨慎之目的”