unknown

1. ADJ If something is unknown to you, you have no knowledge of it. 不了解的

An unknown number of demonstrators were arrested. 不知多少示威者被逮捕了。

The motive for the killing is unknown. 殺人的動機不明。

2. N-COUNT An unknown is something that is unknown. 未知的事物

The length of the war is one of the biggest unknowns. 戰爭的持續時間是其中一個最大的未知數。

3. ADJ An unknown person is someone whose name you do not know or whose character you do not know anything about. (姓名或性格) 未知的

...the tomb of the unknown soldier. …那名無名士兵的墓。

4. ADJ An unknown person is not famous or publicly recognized. 不出名的

He was an unknown writer. 他是個沒有名氣的作家。

5. N-COUNT An unknown is a person who is unknown. 不爲人知的人

Within a short space of time a group of complete unknowns had established a wholly original form of humour. 在短短的一段時間內，一群完全不爲人知的人已始創了一種新式幽默。

6. ADJ If you say that a particular problem or situation is unknown, you mean that it never occurs. 從未發生過的

A hundred years ago coronary heart disease was virtually unknown in America. 100年前，冠心病在美國幾乎從未有過。

7. N-SING The unknown refers generally to things or places that people do not know about or understand. 未知事物

Ignorance of people brings fear, fear of the unknown. 人的無知帶來了恐懼，對未知事物的恐懼。