Mobile teaching. Bearded man hold mobile phone at lesson. School teacher use mobile internet. E-learning through mobile device. Smartphone as educational tool. Cell phone help in online education.
ID: 1546295546
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- 大图:5890 × 3335 像素·49.87 cm × 28.24 cm·300dpi·JPG
- 中图:1000 × 566 像素·35.28 cm × 19.97 cm·72dpi·JPG
- 小图:500 × 283 像素·17.64 cm × 9.98 cm·72dpi·JPG