health education and pandemic concept - teacher giving tests to students wearing protective medical mask for protection from virus at lecture hall
ID: 1712562940
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- 大图:4167 × 2690 像素·35.28 cm × 22.78 cm·300dpi·JPG
- 中图:1000 × 646 像素·35.28 cm × 22.79 cm·72dpi·JPG
- 小图:500 × 323 像素·17.64 cm × 11.39 cm·72dpi·JPG