dial tone

短语

[计] 拨号音

词形变化

dial tones 复数 dial tones

别名

dialling tone

释义与例句

n.
  1. 1.

    A telephony signal, usually in the form of a sound, used to indicate that the telephone exchange is working, has recognized an off-hook, and is ready to accept a call.

    拨号音