reserve ·noun (SUPPLY)
Definition: a supply of something that you keep until it is needed Level: C2
政府持有大量的外汇储备以稳定经济。
The government maintains substantial foreign currency ___reserves to stabilize the economy.
我在地下室存了一小批瓶装水以备急用。
I keep a small ___reserve of bottled water in the basement for emergencies.
科学家们对全球石油储备的迅速消耗感到担忧。
Scientists are concerned about the rapid depletion of global oil ___reserves.