十几岁的大学生在家做家庭作业. 儿童研究. 儿童教育和学习. 可爱的小男孩. 在教室做家庭作业的可爱小男孩.

一个十多岁的正儿八经的男孩坐在桌前，看着平板电脑屏幕用左手写作作业.

十几岁的大学生在家做家庭作业. 儿童研究. 儿童教育和学习. 可爱的小男孩

一个十多岁、正坐在桌边、在平板电脑家具旁看书的男孩的肖像，正在上网阅读课.

在笔记本左手握笔上写笔记的少年重男轻女肖像.

10岁前严肃的非洲裔女孩反对种族主义的照片显示两只手臂不要远离粉色的covid19

快乐的孩子在可爱而现代的起居室里读书

秋日公园里，一位美丽的青春期少女戴着时尚眼镜，面带严肃表情的特写肖像

一个严肃而傲慢的青春期男孩的肖像

一幅描绘青春期男孩肖像的画作，他双手交叉抱于胸前，面带愁眉，表情严肃而傲慢

有严肃的表示的青春期前的英俊的男孩在Th放置作梦

戴着大太阳镜的风趣少女，表情严肃地指着模仿空间.

年轻可爱少女穿青色T恤金发的特写照看上去很严肃

preteen boy with a serious gesture pointing to notebook blank space on yellow background

橙色背景中突显的非洲青少年时期儿童严肃自信的小学生照片

严重的青春期前

严重的青春期前

一位严肃的青春期少女在灰色背景下平静地摆姿势拍摄正面肖像

严肃的黑人青少年男孩自信地看着相机，穿着休闲服装，背景为灰色

boy packing school backpack home kitchen serious preteen child organizing stationery notebooks for schoolday focused schoolboy

严肃的黑人青少年男孩的侧面肖像，在灰色背景的演播室中

亚洲青少年女孩严肃侧面肖像，身穿粉色上衣，背景为灰色

严肃的非裔美国少年为学校肖像照摆姿势，背景为灰色

12岁以前的美女在室内摆姿势

严肃的青少年男孩侧身站立，眺望前方，背景是工作室墙壁

严肃的青少年女孩正在用智能手机通话

严肃又有趣的青春期女学生，双手交叉放在胸前，看着镜头

正在健身房锻炼的正常运动男孩用沉重的哑铃

正在准备健美健美男篮的正儿童

严肃的阿拉伯青少年女孩的侧面肖像，背景为白色墙壁

一张严肃的年轻女孩的特写肖像，穿着牛仔裤和衬衫，在鲜艳的黄色背景下显得若有所思

戴着针织帽的正经少女

正儿八经的女孩在相机灰色背景中的肖像

严重的少女，白色假的

年轻严肃的青春期女孩的照片，自信地交叉双手，专注且集中，与紫色背景隔离

在沙滩上画的严肃的男孩朋友肖像

我说不. 穿着蓝色t恤的正经男孩在摄像机前保持棕榈前，限制或警告保持社交距离

我说不. 严重的青春期前男孩在相机前保持双掌向前，限制或警告保持社交距离

深色蓝色背景中穿着棕色整容的严肃自信的青春期前女孩的照片

用手指拍下下巴的严重青春期前女孩的肖像，在灰色地带上贴出深刻的面部表情

child listening headphones student with headphones online learning child remote learning student home education distance learning

robot vehicle shows mechanical toy design robot parts create technology learning concept child builds robot with controller nearby

child resting peacefully on bench outdoors young boy enjoying carefree playtime in garden sitting relaxed and dreaming kid alone

cozy winter kids mood child play with snow in a forest clothing for teen kid snowy face outdoor portrait cute enjoying day outside

kid playing guitar child practicing guitar music in living room kid learning guitar indoors boy with guitars during music kid

child plant tree in spring field little gardener with watering can and shovel cultivating garden

teenager relaxed with tablet at night child holding on pillow kid scrolling media distracted by light

kid play in snow active winter day for kids childhood child sledding theme christmas and new year scene with sled

school student studies at desk school learner enjoys virtual classroom happy school teenager uses laptop online school supports

face portrait shows joyful expression cute face smiles in sunny park face closeup feels calm and natural face mood looks cheerful

clever child reading a book at home kid read book in a home interior smart reader enjoying a story books at home clever kid clever

piggy bank stands beside happy child smart kid saves dollars and coin young plans future finance goals cute supports money

adventure child enjoys peaceful outdoor exploration summer adventure lifestyle in green countryside scenic adventure travel across

learning child studies at desk learning student uses notebook daily happy learner enjoys learning lesson young child loves

kid in bed enjoys fresh morning kid in bed looks relaxed today cozy room keeps kid in bed happy portrait shows kid in bed kid in

imagining child looking away kid in summer park dreamy face outdoors with soft smile

maple leaf hides smiling face red maple leaves add playful mood child holds maple leaves outdoors maple tree creates scenic maple

kid boxing practice at gym boy hitting punching bag fighter sporty training hard strong child youth workout in ring active doing

child uses laptop for online learning headset supports focused home study happy girl shows education concept remote classroom

child with shopping basket in vegetable section kid picking fruits at grocery store cart supermarket healthy produce teen

kid on a pier near the river child thoughtful outdoors casual teenager on nature calm and quiet time near the river peaceful kid

child stretching starts peaceful morning routine child stretching feels healthy after sleep young girl enjoys child stretching

homeschooling supports home education daily lesson uses online learning child happens at desk remote helps young students

child sneezing shows seasonal allergy sick needs tissue outdoors portrait unwell expression health concept fits pediatric care

a cute baby enjoys eating ice cream outdoors child holds cone on street sweet treat brings joy and happiness little kid tastes