Blurred of microphones in seminar room talking speech in conference hall light with microphone and keynote. Speech is vocalized form of communication humans vintage tone
ID: 756258031
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- 大图:5227 × 3078 像素·44.26 cm × 26.06 cm·300dpi·JPG
- 中图:1000 × 589 像素·35.28 cm × 20.78 cm·72dpi·JPG
- 小图:500 × 294 像素·17.64 cm × 10.37 cm·72dpi·JPG