ringing tone
柯林斯词典
1. N a sequence of pairs of tones heard by the dialler on a telephone when the number dialled is ringing 打电话时听到的铃声[英国英语] →compareengaged tone , dialling tone
返回 ringing tone
1. N a sequence of pairs of tones heard by the dialler on a telephone when the number dialled is ringing 打电话时听到的铃声[英国英语] →compareengaged tone , dialling tone