unknown
/ʌnˈnoʊn/
American
- adj. 未知的, 不熟悉的
- n. 未知事物, 未知数
- Definition
- adj. not known or familiar to someone
- n. something that is not known or identified
- Example
- The cause of the strange noise remains completely unknown.
- 那个奇怪声音的原因至今完全未知。