形容词
1. An unknown disease suddenly attacked the crops in this area.
一种尚未搞清的病虫害突然侵袭了这一带的庄稼。
2. It was unknown country to me.
这地区对我说来是陌生的。
3. We bought a drawing by an unknown artist.
我们买了一幅某个不出名的画家所作的画。
名词
1.
1. The author had been an unknown until he published his recent book.
这位作家一直是个默默无闻的人，直到最近出版了他的一本书。