Why mobile phones are spreading so much?

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Mar 18, 2017 02:02
Why mobile phones are spreading so much?
携帯電話が普及している理由

I think it is, because of human’s desire to contact with people easier and quicker.

In olden times, people used a flag to tell information and win the war. Needless to say, quick information is relating to business success. What I want to say is that in each ages, people keep having desire to contact with people as quickly as they can.

*Please tell me if you know any phrase like “what I want to say is”.
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