未知的英文：
unknown

Unknown Error
未知的错误

Status unknown
状态未知

Unknown tag error
未知的标记错误

A polysaccharide of unknown structure was isolated, subjected to exhaustive methylation, and hydrolyzed.
一未知结构的多糖，经完全甲基化和水解。

Cuisine and globalization: homogeneity, heterogeneity and beyond
烹饪和全球化:同质、异质和未知之事

An unsupported or unknown key algorithm was encountered; the current operation cannot be completed.
遇到了不支持的或未知的密钥算法;当前操作无法完成。

Currently Unknown
当前未知

Unknown Usage
未知的用法

Unable to predict who will be the winner
未知鹿死谁手

The revision level is unknown.
修订级别未知。