teenagers checking social media on beach promenade of alicante, spain - 十二歲到十三歲 個照片及圖片檔少年男女, 友誼, 男性少年
elementary female student holding book giving speech while standing in classroom - 十二歲到十三歲 個照片及圖片檔課室, 演示 - 演講, 學習
close up portrait of a smiling african girl with eye glasses and braces on her teeth - 十二歲到十三歲 個照片及圖片檔14歲到15歲, 白色的背景, 女孩
cute european teenage girl in casual clothing on white background studio shot - 十二歲到十三歲 個照片及圖片檔少年男女, 青春期, 兒童
portrait of teenage school boy looking at camera outdoors on sports court - 十二歲到十三歲 個照片及圖片檔男性少年, 英國, 男孩
mid adult woman smiling and embracing her happy son in the home kitchen - 十二歲到十三歲 個照片及圖片檔少年男女, 父母, 擁抱
silhouette of a teenager in profile on a yellow-blue background of an evening window - 十二歲到十三歲 個照片及圖片檔少年男女, 青春期, 男性少年
elementary school junior high student girl listens to teacher in classroom contemplation daydreaming - 十二歲到十三歲 個照片及圖片檔兒童, 讀書, 學習
fun, happy and excited teacher talking to students in school classroom with group of learning children. confident, friendly and cool woman asking diverse young kids education questions in study class - 十二歲到十三歲 個照片及圖片檔教師, 課室, 學生
portrait of group of multiracial elementary school students talking and enjoying studying together in a classroom - 十二歲到十三歲 個照片及圖片檔課室, 兒童, 學生
confident teenage african boy with arms crossed over white background - 十二歲到十三歲 個照片及圖片檔少年男女, 白色的背景, 畫像
multi-ethnic preteen students. computer lab school classroom. digital tablet. teacher. - 十二歲到十三歲 個照片及圖片檔課室, 學生, 學習
