busy line
短語詞組
- busy main line 繁忙干線
- busy railway line 繁忙的鐵路線
- Busy -Line Effect 熱線效應(yīng)
- busy time of line [計(jì)][通信]線路占用時(shí)刻
- busy main -line 繁忙干線
- busy single track line 繁忙單線鐵路
- signal for the busy line 忙音
- call forwarding - busy line 呼叫傳送占線 返回 busy line