“Cases”是英文单词“case”的复数形式，具体含义根据上下文有所不同。以下是常见用法的总结：
| 用法 | 含义 | 示例 |
| 案例 | 指具体的实例或事件 | The teacher gave several legal cases for discussion. |
| 病例 | 医学中指患者的病情 | Doctors studied many rare cases of the disease. |
| 外壳 | 用于电子设备的保护壳 | He bought a phone case to protect his new phone. |
| 箱子 | 指装物品的容器 | The shipment arrived in three large cases. |
在不同领域，“cases”可以表示不同的概念，理解其含义需结合具体语境。
