School class teacher giving lesson in front of a blackboard or board teaching students or pupils they are raising their hands as they know all the answers
ID: 204870643
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- 大图:5576 × 3718 像素·47.21 cm × 31.48 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
- 小图:500 × 333 像素·17.64 cm × 11.75 cm·72dpi·JPG