treasure trove
(rare) polyanthus
(mineralogy) Having some crystal faces and some grainy surfaces; neither entirely euhedral nor entirely anhedral.
A hidden treasure, subsequently discovered. / A valuable discovery. / (law) Precious metal objects that were buried or concealed by an unknown owner.
A form of ubiquinone associated with mitochondria
屋根裏を掃除していたとき、彼らは戦時中の手紙や写真が詰まった宝の山を見つけた。
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