busy signal
noun [ C usually singular ] US uk/ˈbɪz.i ˌsɪɡ.nəl/ us/ˈbɪz.i ˌsɪɡ.nəl/
（电话）忙音
a sound that means that the phone you are calling is being used
| 单词 | busy signal |
| 释义 | busy signal noun [ C usually singular ] US uk/ˈbɪz.i ˌsɪɡ.nəl/ us/ˈbɪz.i ˌsɪɡ.nəl/ （电话）忙音 a sound that means that the phone you are calling is being used |
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