The dictionary is a vast treasuretrove of information.
这本字典是一个信息的巨大宝库。
《柯林斯英汉双解大词典》
2
McKee and his team now knew for certain that they had found the wreck, but were as yet unaware that it also housed a treasuretrove of beautifully preserved artefacts.
麦基和他的团队现在已经确定他们找到了沉船，但他们还没有意识到这艘船里也有一个保存完好的艺术品宝库。
3
But online comments are a treasuretrove of complete data trees.