unknowns
基本解釋
- 未知事件
英漢例句
- He was an unknown painter one year ago.
一年前，他還是一個(gè)不爲(wèi)人知的畫家。 - The disease was practically unknown ten years ago but then it flared and spread like wild fire until it reached epidemic proportions.
這種疾病10年前幾乎無人知曉，可它突然爆發(fā)象野火般迅速傳播，直至流行甚廣。