Back view of school girl doing math task on blackboard in class. Young student writing complex mathematical formula. Unrecognizable teenage girl solving example indoors.
ID: 1946697469
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- 大图:3840 × 2160 像素·32.51 cm × 18.29 cm·300dpi·JPG
- 中图:1000 × 563 像素·35.28 cm × 19.86 cm·72dpi·JPG
- 小图:500 × 282 像素·17.64 cm × 9.95 cm·72dpi·JPG