unknown怎么用

unknown:

adj. 未知的陌生的，默默无闻的

n. 未知数未知的事物，默默无闻的人

His work is practically unknown here .他的作品在这里实际上不为人知。

What will the unknown devil bring ?这个摸不透的恶魔会带来什么呢

The date of birth and death of qu yuan is unknown .屈原的生卒年月不详。

His whereabouts have been utterly unknown so far .迄今他的下落全然未知。

His present whereabouts is unknown .他现在下落不明。

unknown to sb.

背着某人在某人不知晓的情况下

例句:

Unknown to her， I had already seen my lawyer.(我已经背着她见过我的律师了。)