词汇与表达：arsenal-ammunition

arsenal
记忆技巧：arsen 军火 + al 物 → 军火库
对arsenal这个单词有以下两个解释：
①a collection of weapons such as guns and EXPLOSIVES（统称）武器。
②a building where military weapons and EXPLOSIVES are made or stored 兵工厂；武器库；军火库。
但Arsenal是阿森纳 一个足球俱乐部的名字

它上面的确一个有大炮
ammunition/æmju'njn/
n.弹药；信息
扩live ammunition实弹
Stocks of ammunition were running low.
弹药的库存正在减少。