An " unsolved case" or an " unsolved crime" is one where the police have not figured out who the guilty person is.

“未破案”或“未破案”是指警方尚未查明谁是有罪者。

Euphemia Bochkova repeated her statement that she knew nothing, had not taken part in anything, and persistently pointed at Maslova as the only guilty person.

Euphemia Bochkova 重复她的陈述， 她什么都不知道， 没有参与任何事情， 并坚持指出 Maslova 是唯一有罪的人。

The honour of my house has been compromised; I believe you to be the guilty person; at least you are now in the secret; and you can hardly wonder if I request you to wipe out the stain.

我家的荣誉受到了损害； 我相信你是有罪的人； 至少你现在是秘密的； 你几乎不会怀疑我是否要求你擦掉污渍。