The difference between the mobile phone and its parent, the fixed-line phone, is that a mobile number corresponds to a person, while a landline goes to a place.
移动电话和它的祖先固定电话的区别在于,移动电话号码对应的是一个人,而固定电话对应的是一个地方。
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If you call my fixed-line phone, you get whoever answers it.