我常常早上7点就接到公务电话，我和孩子还在车上。
Often, I would get work calls at 7 a. m. while we were in the car.
本发明提出了一种主控板实现公务电话的装置和方法，使操作维护更加灵活便捷。
The invention proposes an apparatus and method for implementing official telephone by a main control board, making operation and maintenance much more flexible and convenient.
本发明提出了一种主控板实现公务电话的装置和方法，使操作维护更加灵活便捷。
The invention proposes an apparatus and method for implementing official telephone by a main control board, making operation and maintenance much more flexible and convenient.
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