unknowns
基本解释
- 未知事件
英汉例句
- He was an unknown painter one year ago.
一年前，他还是一个不为人知的画家。 - The disease was practically unknown ten years ago but then it flared and spread like wild fire until it reached epidemic proportions.
这种疾病10年前几乎无人知晓，可它突然爆发象野火般迅速传播，直至流行甚广。