reservoir
n
1 natural or artificial lake used as a source or store of water for a town, etc (天然的或人工的)水库, 蓄水池.
2 ~ of sth (fig 比喻) large supply or collection of sth 储藏; 汇集
a reservoir of information, facts, knowledge, etc 信息、 事实、 知识等的蓄积
The show is a veritable reservoir of new talent. 这次演出真是新秀荟萃.