BoardSchool White board Green advertising background billboard blackboard blank blue board chalk chalkboard childhood class classroom college communication dirty drawing
ID: 452160553
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- 大图:5028 × 2568 像素·42.57 cm × 21.74 cm·300dpi·JPG
- 中图:1000 × 511 像素·35.28 cm × 18.03 cm·72dpi·JPG
- 小图:500 × 255 像素·17.64 cm × 9 cm·72dpi·JPG