التعليم ، خربش ، نمط ، أ ب ، الأبجدية ، العودة إلى المدرسة ، مرسومة باليد ، منقوش ، مسطرة ، الحاسوب ، شاشة
الصور ذات الصلة الخالية من حقوق الملكية
- Public Domain
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