Discipline concept representing self control consistency and success successs 免版税库存照片 discipline concept representing self control consistency and success successs
Focused asian schoolgirl doing homework with hourglass timer time management and study discipline concept 免版税库存照片 focused asian schoolgirl doing homework with hourglass timer time management and study discipline concept
纪律的概念。一个留着胡须的男人拿着书，一个女老师拿着闹钟，背景是黑板。女老师和严格的校长关心学校的纪律和规矩 库存图片 纪律的概念。一个留着胡须的男人拿着书，一个女老师拿着闹钟，背景是黑板。女老师和严格的校长关心学校的纪律和规矩
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