我们对国家的愿景必须大胆而雄心勃勃。

解释：大部分兽类的肉都是热性的，而兔肉却是冷性的，说明了肉类食材性质的差异。

The best way to gain self-confidence is to do what you are afraid to do.

"Deep learning is a form of machine learning that enables computers to learn from experience and understand the world in terms of a hierarchy of concepts."

保持一颗闲适的心，随遇而安。