The young man sat safe within, till at length it ran ashore upon an unknown land.

年轻人安全地坐在里面，直到最后它漂到一块陌生的陆地上。

youdao

He was an unknown writer.

他是个没有名气的作家。

《柯林斯英汉双解大词典》

The letter had come from an unknown mischief-maker.

这封信来自一个匿名的离间者。

《柯林斯英汉双解大词典》

Diakite,who is also known as Toumba, escaped the attack and is still at large with an unknown number of soldiers from the presidential guard.

VOA: standard.2009.12.07

I could take an unknown gas and put it in and measure it and then say, wow, those are the lines that are characteristic of sodium.

我取一种未知气体，把它放到管里,然后检测它，哇，这些线是钠的特征。

麻省理工公开课 - 固态化学导论课程节选

Therefore, it'll compress by an unknown x, which is equal to mg divided by the force constant of the spring.

因此它的压缩量为 x,也就等于 mg 除以弹簧的弹性系数

耶鲁公开课 - 基础物理课程节选

Not so lucky were the shipwrecked crew of an unknown vessel washed up in 1860.

BBC: The ghostly shore of Namibia��s Skeleton Coast

An unknown state Senator, Kay Hagan, now has pulled ahead of Elizabeth Dole in many polls.

NPR: Democrats Could Reach 60 Senate Seats

Lord Samuel's recent effort in the same direction, An Unknown Country, is even more dismal.

FORBES: Magazine Article