制作一部伟大电影的关键是有一个清晰的愿景并坚持它。

Stray birds of summer come to my window to sing and fly away。 And yellow leaves of autumn， which have no songs， flutter and fall there with a sigh。

The study of learning algorithms must consider both the statistical and computational aspects of learning.

唱歌的时候，我希望能传递正能量。

The market competition is fierce, only continuous learning ensures invincibility.