unknowns
英 [ʌn'nəʊnz] 美 [ʌn'noʊnz]

n.

不知名或不出名的人( unknown的名词复数 )；未知的事物；未知数；

双语例句

1. He was an unknown painter one year ago.
   一年前，他还是一个不为人知的画家。
2. 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。

权威例句

Current unknowns in the three neutrino framework
Using unknowns to prevent discovery of association rules
Using unknowns to prevent discovery of association rules
The known unknowns of antigen processing and presentation.
The knowns, known unknowns and unknowns of sequestration of soil organic carbon
Cornel Zwierlein. Imperial Unknowns: The French and British in the Mediterranean, 1650–1750.
On the heptic diophantine equation with three unknowns 5(x^2+y^2 )-9xy=35z^7
Teacher expectations and self-fulfilling prophecies: knowns and unknowns, resolved and unresolved controversies
Professional Development in Integrating Technology into Teaching and Learning: Knowns, Unknowns, and Ways to Pursue Better Questions...
As manufacturing continues to contract, the winds of change are blowing through the industry, with many unknowns still on the horizo...