| 单词 | be like/as safe as Fort Knox |
| 释义 | ● be like /as safe as Fort ˈKnox (of a building 建筑物) to be strongly built , often with many locks , strong doors , guards , etc ., so that it is difficult for people to enter and the things kept there are safe 坚固且戒备森严；固若金汤◆ This home of yours is like Fort Knox . 你这所房子可以说是固若金汤。ORIGINFrom the name of the military base in Kentucky where most of the US's store of gold is kept .源自美国肯塔基州存放美国大部分黄金储备的军事基地名。See also Fort Knox |
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