复数： unknowns
易混淆的单词： Unknown

But the accuracy of these scans is unknown .

但是这些扫描的精确度是未知的。

Unknown causes account for approximately twenty percent of infertility cases .

不明原因大约占不孕病例的百分之二十。

Have patience with the unknown .

对未知的东西多点耐心。

The fate of the company at home is unknown .

该公司在中国国内的命运仍是个未知数。

Mr brown 's court remains largely unknown .

布朗的班底则大部分依然不为人知。