未知数 wèizhīshù unknown number
unknown number; (figuratively) an unknown; an uncertainty
怎么记住“未知数”: 未 not yet + 知 know + 数 number = unknown number.
汉字
用法
- 'Unknown (quantity)' - 结果还是个未知数 (jiéguǒ háishì ge wèizhīshù) the outcome is still up in the air.
- Literally a math 'unknown', but mostly figurative for an uncertain matter.
- Common way to say the future or result can't yet be predicted.