Male speaker giving presentation in lecture hall at university workshop. Audience in conference hall. Rear view of unrecognized participant in audience. Scientific conference event.
ID: 693123229
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- 大图:4121 × 2700 像素·34.89 cm × 22.86 cm·300dpi·JPG
- 中图:1000 × 655 像素·35.28 cm × 23.11 cm·72dpi·JPG
- 小图:500 × 328 像素·17.64 cm × 11.57 cm·72dpi·JPG