legs, running and school children in a hallway after class for break or recess during scholarship or education. kids feet, rush and in a hurry to learn or study while leaving a classroom closeup - 少年男女 個影片檔及 b 捲影像00:13
slo mo ts female soccer player scoring a goal at a soccer match at night - 少年男女 個影片檔及 b 捲影像00:17足球 - 團體運動, 女人
close-up woman smoking an electronic cigarette vape and exhaling thick white smoke cut out on black - 少年男女 個影片檔及 b 捲影像00:21電子煙, 吸煙, 青春期
university student friends working on laptop and books sitting on the steps in the campus - 少年男女 個影片檔及 b 捲影像00:12印度人, 學生
ms silhouettes of mother and teenage (14-15) daughter arguing in corridor / cedar hills, utah, usa - 少年男女 個影片檔及 b 捲影像00:20
ws zi female student (16-17) walking and sitting down in school corridor / spanish fork city, utah, usa - 少年男女 個影片檔及 b 捲影像00:17青春期
father and son using a smartphone after playing a game of basketball. young man and teenage boy having fun while staying fit, active - 少年男女 個影片檔及 b 捲影像00:15父母
sad teenage girl looks out of the window whilst sitting on her bed - negative emotion - 少年男女 個影片檔及 b 捲影像00:20
a female basketball player dribbles a ball on the court while being protected by a defender. - 少年男女 個影片檔及 b 捲影像00:18少女
confident group of students walking to university, one woman turning to the camera - 少年男女 個影片檔及 b 捲影像00:14
cheerful rural indian village teenage girl student going to college together. - 少年男女 個影片檔及 b 捲影像00:38印度人, 少女
teenage boy standing on railroad platform in nice (gare de nice-ville or gare thiers) on a spring day. - 少年男女 個影片檔及 b 捲影像00:08
generations connect: granddaughter teaches grandfather online shopping. - 少年男女 個影片檔及 b 捲影像00:16少女, 手機
close up of sad girl texting on cell phone / cedar hills, utah, united states - 少年男女 個影片檔及 b 捲影像00:16手機, 情緒壓力
a mother and son are sitting at home and talking, helping her son solve his teenage problems - 少年男女 個影片檔及 b 捲影像00:20青春期
over the shoulder close up view of teenage girl scrolling social media on cell phone / alpine, utah, united states - 少年男女 個影片檔及 b 捲影像00:15手機, 少女
father talking to his adolescence teenager daughter, trying to understand and console her. - 少年男女 個影片檔及 b 捲影像00:17父母
tracking shot of mother and defiant daughter arguing then girl slamming bedroom door / springville, utah, united states - 少年男女 個影片檔及 b 捲影像00:07少女
vulnerable teenage girl talks with mental health professional during therapy session - 少年男女 個影片檔及 b 捲影像00:14青春期
the upset teenage asian boy is reading alone on his smartphone late at night, caught in the grips of adolescent social media addiction - 少年男女 個影片檔及 b 捲影像00:12情緒壓力
teenage high school boy walks confidently towards brick high school building - 少年男女 個影片檔及 b 捲影像00:16學生, 青春期