unknown

中文意思

• adj. 未知的
• adj. 陌生的
• n. 未知事物
• n. 无名之辈

英文释义

• n. an unknown and unexplored region
• n. a variable whose values are solutions of an equation
• adj. not known
• adj. not known to exist

词形变化

复数

unknowns

例句

1. adj. 未知的

   The exact cause of the plane crash remains unknown to the investigators.

   调查人员目前仍不清楚这起空难的确切原因。

2. adj. 陌生的

   She felt a bit nervous when walking alone in an unknown city at night.

   夜晚独自走在一座陌生的城市里，她感到有点紧张。

3. n. 未知事物

   Starting a new business is exciting, but it also means facing the unknown.

   自主创业固然让人兴奋，但也意味着要面对未知事物。

4. n. 无名之辈

   Before winning the national competition, he was completely an unknown.

   在赢得全国比赛之前，他完全是个无名之辈。