Female speaker giving presentation in lecture hall at university workshop . Participants listening to lecture and making notes. Scientific conference event.
ID: 598469045
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- 大图:4352 × 2400 像素·36.85 cm × 20.32 cm·300dpi·JPG
- 中图:1000 × 551 像素·35.28 cm × 19.44 cm·72dpi·JPG
- 小图:500 × 276 像素·17.64 cm × 9.74 cm·72dpi·JPG