Food supplies were severely depleted.是什么意思？

Food supplies were severely depleted.

食物供应已严重不足。

food

n. 食物，食品，粮食，养料，资料；

例句
English food can be wonderful but the normal English diet is abominable.
英国也有美食，只是一般的日常饮食太过糟糕。

supplies

n. 日用（必需）品，供应，补给，供应量，供给物( supply的名词复数 )，储备物质，粮食；v. 供给( supply的第三人称单数 )，补充，弥补（缺陷、损失等），向…提供（物资等）；

例句
The IRA had extensive supplies of arms.
爱尔兰共和军有庞大的军备。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

severely

adv. 严格地，严重地，严厉地，严肃地；

例句
The accident left the boy severely brain-damaged and almost totally reliant on others.
那次事故使这个男孩脑部严重受损，生活几乎完全依赖别人。

depleted

adj. 废弃的；v. <正>使大大的减少，使空虚( deplete的过去式和过去分词 )，耗尽，使枯竭；

例句
They fired in long bursts, which depleted their ammunition...
他们长时间开火，耗尽了弹药。