一切都是观摩和学习。

It was all watch and learn.

youdao

超高清晰度视频-观摩与学习晶莹剔透的质量。

Ultra High Definition Video - Watch and learn with crystal clear quality.

youdao

超高清晰度视频-观摩与学习晶莹剔透的质量。

Ultra High Definition Video - Watch and learn with crystal clear quality.

youdao