One girl tried to call her mum with her mobile phone but there was no signal in the mountain area.
一个女孩试图打电话给她妈妈和她的手机，但在山区没有信号。
In addition, there is also the vexed question of spectrum allocation in the mobile area.
此外，在移动通信领域，频普的分配也是令人苦恼的问题。
Nobody knew what to do. One girl tried to call her mum with her mobile phone but there was no signal in the mountain area.
没有人知道该怎么做，有个女孩试图给妈妈打电话，但是山区没有信号。
One girl tried to call her mum with her mobile phone but there was no signal in the mountain area.
一个女孩试图叫她妈妈与她的移动电话，但山区没有信号。
One girl tried to call her mum with her mobile phone but there was no signal in the mountain area.
一个女孩试图叫她妈妈与她的移动电话，但山区没有信号。
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