teenage girl relaxing on airport waiting seat using smartphone before flight - 發育前兒童 個影片檔及 b 捲影像00:08
two hispanic brothers resting, lying down and browsing on smartphones, in bedroom - 發育前兒童 個影片檔及 b 捲影像00:09
4k footage four children lying on blanket-covered floor each engaged with their own smartphone at home. - 發育前兒童 個影片檔及 b 捲影像00:14
a shallow depth shot of an 8-9 year old hispanic girl taking an afternoon nap - 發育前兒童 個影片檔及 b 捲影像00:08青春期
teenage girl uses lighted touch mirror to apply makeup in bathroom, energy saving, environmentally friendly - 發育前兒童 個影片檔及 b 捲影像00:22
mixed asian preteen girl selfie after applying make-up at home, beauty vlogger, self-love natural look concept - 發育前兒童 個影片檔及 b 捲影像00:08少女, 青春期
portrait indian boy dribbling, practising basketball at basketball court in weekend morning - 發育前兒童 個影片檔及 b 捲影像00:15
young girl, thinking and writing in classroom for exam, test or learning assessment at school. confused female person, teenager or child in wonder or thought at institute for intermediate education - 發育前兒童 個影片檔及 b 捲影像00:16學生
hallway, running and children in school for education, excited for learning and knowledge. friends, diversity and young boys and girls hurry in corridor for classroom, studying and lesson at academy - 發育前兒童 個影片檔及 b 捲影像00:08學生
child owner holding a cute fluffy white british shorthair spoiled cat on his lap - 發育前兒童 個影片檔及 b 捲影像00:19
close up of carefree mother and son hanging out on sofa / black diamond, washington, united states - 發育前兒童 個影片檔及 b 捲影像00:13擁抱
a hispanic girl in her early teens riding a train and texting on a sunny day in salt lake city - 發育前兒童 個影片檔及 b 捲影像00:07美國
children, school and hula hoop with friends playing outdoor together during a break on the playground. kids, game or excitement with a group of girl and boy students on a sports court for fun - 發育前兒童 個影片檔及 b 捲影像00:16操場
children, playground and hula hoop with a group of friends playing outdoor together during their break at school. kids, game or excitement with girl and boy students on a sports court for fun - 發育前兒童 個影片檔及 b 捲影像00:14
african young beautiful girl, elementary student practicing drawing and acrylic color painting on an artist's canvas in art class seriously with her multiracial friends - 發育前兒童 個影片檔及 b 捲影像00:09
4k video footage of a young girl sitting alone at home and reading a textbook - 發育前兒童 個影片檔及 b 捲影像00:10學生
students and buses arrive at barrington middle school on april 08, 2014 in barrington, illinois. - 發育前兒童 個影片檔及 b 捲影像00:15手機, 學生, 初中
elementary school kids playing sooccer and ball games in the school yard - 發育前兒童 個影片檔及 b 捲影像00:04足球 - 團體運動, 美國
physical therapist helping a girl while she is walking with the help of parallel bars - 發育前兒童 個影片檔及 b 捲影像00:10