a place that is full of something good

a treasure trove of information 丰富的信息

Though small, this museum is a veritable treasure trove of history. 尽管这个博物馆很小，却也是大量史实资料的宝库。

a large amount of money or a large number of valuable objects found hidden somewhere and seeming to belong to no one

A Roman soldier's pay, found by a metal detector enthusiast in Norfolk, has been declared treasure trove. 一个金属探测爱好者在诺福克郡发现了一枚古罗马士兵的薪金币，经过鉴定被宣布为无主珍宝。