business education and people concept - smiling businesswoman or teacher with microphone talking to group of students at conference presentation or lecture
ID: 715085437![复制](//static.hellorf.com/hellorf/_next/images/copy.svg)
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- 大图:5742 × 3660 像素·48.62 cm × 30.99 cm·300dpi·JPG
- 中图:1000 × 637 像素·35.28 cm × 22.47 cm·72dpi·JPG
- 小图:500 × 319 像素·17.64 cm × 11.25 cm·72dpi·JPG