close-up of a girl's hand. Hold white chalk and write formulas in chemistry lesson. blackboard.
ID: 1784603495
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- 大图:5731 × 3821 像素·48.52 cm × 32.35 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
- 小图:500 × 334 像素·17.64 cm × 11.78 cm·72dpi·JPG