Student or teacher touching mathematical and scientific concepts symbols and equations on a virtual screen interface
ID: 545133535
以图搜图
- 大图:4174 × 2959 像素·35.34 cm × 25.05 cm·300dpi·JPG
- 中图:1000 × 709 像素·35.28 cm × 25.01 cm·72dpi·JPG
- 小图:500 × 354 像素·17.64 cm × 12.49 cm·72dpi·JPG