Unfortunately, pieces of science journalism can also oversimplify and generalize their subject material to the point that the basic information conveyed is obscured or at worst, obviously wrong.
2018年12月六級(jí)真題（第三套）閱讀 Section C
柯林斯高階英漢雙解學(xué)習(xí)詞典釋義
ADJ-GRADED
無(wú)名的；鮮為人知的；默默無(wú)聞的
If something or someone is obscure, they are unknown, or are known by only a few people.