low angle view of young group of people holding cellphone devices at city street. diverse addicted teen friends watching social media content on smartphone app. youth, gen tech people and technology lifestyle concept. - 在校學童 個照片及圖片檔社交網絡, 少年男女, 青春期
schoolgirl girlfriends in the school yard at recess watching videos and chatting with friends using a mobile phone - 在校學童 個照片及圖片檔兒童, 手機, 少年男女
elementary school kids raising their hands in class to answer a teacher's question. - 在校學童 個照片及圖片檔教育, 學校建築, 英國
children, freedom and energy with friends cheering together outdoor while having fun during the day. kids, energy or diversity with a girl and boy group playing or bonding outside in summer - 在校學童 個照片及圖片檔兒童, 童年, 幸福
low section of teenage boys walking through corridor on way to class, focus on legs and feet - 在校學童 個照片及圖片檔無法辨認的人, 教育, 學校建築
portrait of female student writing in book while sitting at table in classroom - 在校學童 個照片及圖片檔兒童, 學校建築, 教育
young female teacher guiding schoolgirls using digital tablet, sitting at desk in class - 在校學童 個照片及圖片檔教師, 課室, 兒童
