reserve

n.

1. 储备（物）；储备金；保留（物）；储藏量[C][U][（+of）]
   The old man kept a large reserve of firewood for cold weather.

   这位老人贮存了大量的柴薪以备天冷时用。

2. 保留地；保护区；禁猎区[C]
3. 储备选手，候补[C]
4. 克制；沉默寡言；含蓄；冷淡[U]
   He spoke with reserve.

   他说话谨慎。

5. 预备军，后备队；预备役军人[P1]
   The reserves were quickly mobilized during the war.

   战争期间后备队很快动员起来。