4K Sad caucasian little girl child reading book at desk in classroom tired upset pupil studying lesson sleepy kid schoolgirl school 股票视频 Sad caucasian little girl child reading book at desk in classroom tired upset pupil studying lesson sleepy kid schoolgirl school 股票视频
4K Tired caucasian little girl upset student writing difficult task exam in school teenager kid child sad disappointed schoolgirl 股票录像 Tired caucasian little girl upset student writing difficult task exam in school teenager kid child sad disappointed schoolgirl 股票录像
4K Upset sad girl teen caucasian schoolgirl angry pupil student irritated kid child studying learning exam difficult task upset sad 股票视频 Upset sad girl teen caucasian schoolgirl angry pupil student irritated kid child studying learning exam difficult task upset sad 股票视频
4K Tired exhausted little boy african american kid child student schoolboy pupil weary sad upset son sleepy at desk classroom primary 股票视频 Tired exhausted little boy african american kid child student schoolboy pupil weary sad upset son sleepy at desk classroom primary 股票视频
4K High school students pupils man woman gen z girl guy upset tired schoolgirl schoolboy teenagers sad difficult task high school 股票录像 High school students pupils man woman gen z girl guy upset tired schoolgirl schoolboy teenagers sad difficult task high school 股票录像
4K Bored schoolgirl caucasian girl kid child pupil read book in school library sad tired learner student teenager upset bored 股票视频 Bored schoolgirl caucasian girl kid child pupil read book in school library sad tired learner student teenager upset bored 股票视频
4K Caucasian girl teenager kid child sad disappointed upset student schoolgirl think lesson school learning studying caucasian girl 股票录像 Caucasian girl teenager kid child sad disappointed upset student schoolgirl think lesson school learning studying caucasian girl 股票录像
4K 悲伤无聊的女孩，高加索儿童，学生，女学生，学习者，疲惫，沮丧，女儿在书桌旁，困倦，疲惫不堪的青少年 影视素材 悲伤无聊的女孩，高加索儿童，学生，女学生，学习者，疲惫，沮丧，女儿在书桌旁，困倦，疲惫不堪的青少年 影视素材
4K Bored sad frustrated teen kid caucasian girl pupil schoolgirl upset learner at desk tired lazy exhausted student child bored sad 股票录像 Bored sad frustrated teen kid caucasian girl pupil schoolgirl upset learner at desk tired lazy exhausted student child bored sad 股票录像
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