sad teenage boy with mobile phone and backpack sitting stairs teenager surfing internet watching video using |
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| navigate by keyword : addiction adolescent alone app boy bullying caucasian cell chat child city cyber difficulties disappointed education failure internet kid learning media message mobile one online phone problem sad school share sitting smartphone social staircase stairs technology teen teenage teenager texting tired trouble type urban using video young |
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| Sad teenage boy with mobile phone and backpack sitting on stairs. Teenager surfing on Internet, watching video, using app. Education, learning difficulties, mobile addiction concept. |
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