Young business people using mobile phone with modern city buildings background. Future telecommunication technology and internet of things ( IOT ) concept.
ID: 1170807412
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- 大图:6471 × 2994 像素·54.79 cm × 25.35 cm·300dpi·JPG
- 中图:1000 × 463 像素·35.28 cm × 16.33 cm·72dpi·JPG
- 小图:500 × 232 像素·17.64 cm × 8.18 cm·72dpi·JPG