the student sits with a headset at the computer watching and listening to video tutorials online
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- 大图:5890 × 3313 像素·49.87 cm × 28.05 cm·300dpi·JPG
- 中图:1000 × 562 像素·35.28 cm × 19.83 cm·72dpi·JPG
- 小图:500 × 281 像素·17.64 cm × 9.91 cm·72dpi·JPG