郝艺涵用英语怎么说

郝艺涵 (Hao Yihan) is the Chinese equivalent of the English name "John Doe." It is a placeholder name often used in legal documents and other contexts where the real name of a person is not known or needs to be withheld. In English, it is commonly used as a reference to a hypothetical or unknown person.
The origins of the name "John Doe" are not entirely clear, but it is believed to have originated in the legal system of England and Wales. In old English law, a "John Doe" was a dummy plaintiff or defendant named in a legal action who represented an unknown or hypothetical person. The corresponding female placeholder name was "Jane Doe."
Examples of usage in English:
The police are looking for a John Doe who was seen leaving the scene of the crime.
The defendant in the case was referred to as John Doe until his real name was revealed.
The hospital is treating a John Doe who was found unconscious on the street.
翻译:
警方正在寻找犯罪现场离开的约翰·道 (John Doe)。
该案件的被告直到真名曝光前一直被称为约翰·道 (John Doe)。
医院正在治疗一名在街上无意识的约翰·道 (John Doe)。