unknowns
基本解释
- 未知事件
英汉例句
- He was an unknown painter one year ago.
一年前,他還是一個不爲人知的畫家。 - 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,可它突然爆發象野火般迅速傳播,直至流行甚廣。