unknown number

短语

[计] 未知数 [化] 未知数

词形变化

unknown numbers 复数 unknown numbers

释义与例句

n.
  1. 1.

    A phone number that is unfamiliar to the recipient.

  2. 2.

    A phone number that is hidden from the recipient.

  3. 3.

    Used other than figuratively or idiomatically: see unknown, number.