education and technology concept - smiling students with tablet pc computer sitting on staircase and showing thumbs up
ID: 193164614
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- 大图:4740 × 3379 像素·40.13 cm × 28.61 cm·300dpi·JPG
- 中图:1000 × 713 像素·35.28 cm × 25.15 cm·72dpi·JPG
- 小图:500 × 356 像素·17.64 cm × 12.56 cm·72dpi·JPG