名词
中文翻译：呼叫板
同义词：
['phone board', 'call panel', 'console']
例句：
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1. The call-board is the main control panel for the phone system.
呼叫板是电话系统的主要控制面板。
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2. The engineers were busy troubleshooting the call-board.
工程师们忙于调试呼叫板。
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3. The call-board was a crucial part of the communication system in the old days.
呼叫板是旧时代通信系统中至关重要的部分。