n.[C]

1. （蓄）水库；贮水池（或槽）；贮存器
   This reservoir supplies the entire city with water.

   这个水库为全城供水。

2. 储藏所，仓库
3. （知识，精力等的）储藏，积蓄[（+of）]
   History is a reservoir of human experience.

   历史是人类经历的总汇。

4. 【生】储液囊

vt.

1. （在水库，水槽等中）储藏，积蓄

n.

1. a large natural or artificial lake used as a source of water supply.
   ▸a supply or source of something.
2. a place where fluid collects, especially in rock strata or in the body.
3. a receptacle or part of a machine designed to hold fluid.