监狱使用的钥匙。普通形状的钥匙，用于关押低危险罪犯的场所。
It's the most standard form of key used in prisons, used for cells holding criminals of less importance.
监狱使用的钥匙。普通形状的钥匙，用于关押低危险罪犯的场所。
It's the most standard form of key used in prisons, used for cells holding criminals of less importance.