It can also let them know if an unknown person has trespassed on their property.

而且在不认识的人闯入家中时，主人也能及时获悉。

I don't. I'm using the generic term for an unknown person.

不知道 我只是对未知性别用通称而已。

One screen had an unknown person and the other had one of four famous people.

其中一位是普通人，另一个是四位名人中的一位。

The police were finding DNA traces from an unknown person at a huge number of different crime scenes.

警方在大量不同的犯罪现场发现了一个不明身份之人的 DNA 痕迹。

During that time, Holmes went from an unknown person to a Silicon Valley star who was valued at $4.5 billion.

在此期间，霍尔姆斯从一个不为人知的人变成了身价45亿美元的硅谷明星。

" Wilful Murder against some person or persons unknown" .

“对某人或不明人士的蓄意谋杀”。

They also suggested that some unknown person may have been responsible.

他们还表示，一些不知名的人可能对此负责。

" A month! But I need it this evening, Snape! I have just found Potter using my fire to communicate with a person or persons unknown! "

“一个月？可我今晚就要，斯内普！我刚才发现波特在用我的炉火和一个或者几个不知名的人联络！”

But if an unknown person enters a home, the camera will send the owner an alert that will cause an alarm to sound on the owner's smartphone.

如果陌生人闯入家中，摄像头就会向业主发出警报。

You're asking me to risk my job to help you solve a mysterious problem for an unknown person, based on nothing but your word?

你要我冒着丢饭碗的风险来帮你为某个人解决神秘问题，就只听凭你一家之言？

It was Prudencio Aguilar who cleaned him, fed him, and brought him splendid news of an unknown person called Aureliano who was a colonel in the war.

是普鲁登西奥·阿吉拉尔为他打扫卫生、喂养他，并给他带来了一个好消息：一个不知名的人名叫奥雷连诺，他是战争中的一名上校。

His siblings in Ghana helped for a bit, but they had their own lives, and Amoah felt they were suspicious of this unknown person who had turned up at their father's funeral.

他在加纳的兄弟姐妹帮了一点忙，但他们有自己的生活，阿莫亚觉得他们不信任这个出现在他们父亲葬礼上的陌生人。

You don't know if it's a man or a woman, so traditionally in English we would use " he" and " him" as pronouns referring to that unknown person.

你不知道它是男人还是女人，所以传统上在英语中我们会使用“他” 和“他” 作为指代那个陌生人的代词。

To find out if sheep can recognize faces in this way, researchers trained them to recognize photos of celebrities The sheep had to choose between the celebrity and either a blank screen, an object, or an unknown person.

为了弄清楚绵羊是否可以通过这种方式识别面孔，研究人员训练它们识别名人的照片。绵羊必须在名人与空白屏幕、物体或未知人物之间做出选择。

We use singular they all the time when referring to an unknown person, such as in " Does anyone know what they want? " Or, " Each student took their books home with them, " or if you're BBC avoiding MasterChef spoilers.

我们在提到一个不认识的人时总是使用单数的 they，例如在“Does anyone know what they want? ” 中。或者，“每个学生都把书带回家了， ”或者如果你是 BBC 避免剧透 MasterChef。

However, (static) I don't know if it's because writing about yourself is hard, or writing for an unknown person is hard, or writing without knowing if a person is ever gonna see it is hard, I don't know, but I wanna find out.

然而，（静态）我不知道是因为写你自己很难，还是为一个不知名的人写作很难，或者不知道一个人是否会看到它就写作很难，我不知道，但我想找出答案。