an upset asian teenage boy student, dressed in casual outfit, sits on a stairway reading on his smartphone with a backpack beside him, while dealing with the issue of cyberbullying. - 少年男女 個照片及圖片檔男性少年, 悲哀, 社交網絡
portrait of smiling teenage girl with braided hair against colored background - 少年男女 個照片及圖片檔畫像, 微笑, 幸福
pediatrician showing her teenage patient how to access his medical records on a digital tablet. - 少年男女 個照片及圖片檔醫生, 青春期, 病人
teenage boy sharing smart phone with mother while lying on sofa in living room at home - 少年男女 個照片及圖片檔男性少年, 家庭
young woman text messaging on smart phone while lying on bed in bedroom at night - 少年男女 個照片及圖片檔夜晚, 手機
proud mother of black ethnicity, picking up her teenage daughter from her basketball practise - 少年男女 個照片及圖片檔父母, 兒童, 家庭
portrait of serious teenage female and male friends with arms crossed standing against colored background - 少年男女 個照片及圖片檔青春期, 時尚物品, 年輕成年人