teenager
US /ˈtiːnˌeɪ.dʒɚ/
UK /ˈtiːnˌeɪ.dʒɚ/

1.
青少年, 十幾歲的人
a person aged between 13 and 19 years old
:
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My daughter is a teenager now, she just turned 15.
我女兒現在是青少年了,她剛滿15歲。
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Many teenagers enjoy spending time on social media.
許多青少年喜歡花時間在社交媒體上。