obscure

The poem was filled with obscure references that only a few scholars could identify.

(Chinese) 这首诗充满了晦涩的典故，只有少数几位学者能识别出来。

He is a collector of obscure 1920s jazz records that are hard to find today.

(Chinese) 他是一位20世纪20年代冷门爵士乐唱片的收藏家，那些唱片现在很难找到。

Tall buildings in the downtown area obscure our view of the sunset.

(Chinese) 市中心的高层建筑挡住了我们看日落的视线。

The truth about the incident was obscured by a series of conflicting news reports.

(Chinese) 关于这起事件的真相被一系列相互矛盾的新闻报道掩盖了。